Question

MATHEMATICS

1. The measure of location which is the most likely to
be

influenced by extreme values in the data set is the a. range
b.

median c. mode d. mean

2. If two events are independent, then a. they must be
mutually

exclusive b. the sum of their probabilities must be equal to one
c.

their intersection must be zero d. None of these alternatives
is

correct. any value between 0 to 1

3. Two events, A and B, are mutually exclusive and
each have a

nonzero probability. If event A is known to
occur, the

probability of the occurrence of event B is a. one b. any

positive value c. zero d.

4. A numerical description of the outcome of an
experiment is called

a a. descriptive statistic b. probability function c. variance
d.

random variable

5. In the textile industry, a manufacturer is
interested in the

number of blemishes or flaws occurring in each 100 feet of

material. The probability distribution that has
the greatest

chance of applying to this situation is the a. normal
distribution

b. binomial distribution c. Poisson distribution d. uniform

distribution

6. Which of the following is not a. a property of a
binomial

experiment? the experiment consists of a sequence of n
identical

trials b. each outcome can be referred to as a success or a

failure c. the probabilities of the two outcomes can change
from

one trial to the next d. the trials are independent

7. The level of significance is the a. maximum
allowable

probability of Type II error b. maximum allowable probability
of

Type I error c. same as the confidence coefficient d. same as

the p-value

8. An important application of the chi-square
distribution is a.

making inferences about a single population variance b. c. b.

testing for goodness of fit testing for the independence of
two

variables d. All of these alternatives are correct.

9. For a continuous random variable x, the probability
density

function f(x) represents a. the probability at a given value of
x

the area under the curve at x c. the area under the curve to

the right of x d. the height of the function at x

10. Convenience sampling is an example of a.
probabilistic sampling

b. stratified sampling c. nonprobabilistic sampling d.
cluster

sampling

11. In hypothesis testing, the hypothesis tentatively
assumed to be

true is a. the alternative hypothesis b. the null hypothesis
c.

either the null or the alternative d. None of these alternatives
is

correct.

12. In point estimation a. data from the population is
used to

estimate the population parameter b. data from the sample is
used

to estimate the population parameter c. data from the sample
is

used to estimate the sample statistic d. the mean of the

population equals the mean of the sample a constant variable c.
a

dummy variable d. None of these alternatives is correct.

13. A variable that takes on the values of 0 or 1 and
is used to

incorporate the effect of qualitative variables in a
regression

model is called a. an interaction b.

14. A property of a point estimator that occurs
whenever larger

sample sizes tend to provide point estimates closer to the

population parameter is known as a. efficiency b. unbiased
sampling

c. consistency d. relative estimation

15. If a hypothesis is rejected at the 5% level of
significance,

it a. will always be rejected at the 1% level b. will always
be

accepted at the 1% level c. will never be tested at the 1%
level

d. may be rejected or not rejected at the 1% level

16. Which of the following does not need to be known
in order to

compute the p-value? a. knowledge of whether the test is

one-tailed or two-tailed b. the value of the test statistic c.
the

level of significance d. None of these alternatives is
correct.

17. The ANOVA procedure is a statistical approach for
determining

whether or not a. the means of two samples are equal b. the

means of two or more samples are equal c. the means of more

than two samples are equal d. the means of two or more

populations are equal

18. The range of the Durbin-Watson statistic is
between a.1 to 1

b. 0 to 1 c.infinity to + infinity d. 0 to 4

19. A random sample of 121 bottles of cologne showed
an average

content of 4 ounces. It is known that the
standard deviation of the

contents (i.e., of the population) is 0.22 ounces. In
this

problem the 0.22 is a. a parameter b. a statistic c. the

standard error of the mean d. the average content of colognes
in

the long run

20. Maria is 6 times as old as Tina. In 20 years,
Maria will

be only twice as old as Tina. How old is Maria now? A) 25 B)

28 C) 29 D) 30

21. If a secretary types 60 words per minute, how many
minute

will he take to type 330 words? A) 11/2 B) 15/2 C) 16/3 D)

17/2 E) 19/4

22. If Scott can mow 2/5 of a lawn each hour, how many
lawns

can he mow in h hours? A) 2h/5 B) 5h/2 C) h-2/5 D) 2/5h E) 5/2h

23. If it is now June, what month will it be 100
months from

now? A) January B) April C) June D) October E) December

24. In a group of 100 students, more students are on a
team

than are members of a club. If 70 are in clubs and 20 are

neither on a team nor in a club, what is the minimum number

of student who could be both on a team and in a club? A) 61

B) 62 C) 65 D) 70 E) 75

25. A student bought 3 notebooks and 1 pen for N35.
After

misplacing these items, she again bought 2 note books and 2

pens, all of the same type for N30. What is the cost of a
pen?

A) N5.00 B) N7.50 C) N10.00 D) N15.00

26. If the simple interest on N2, 000 after 9 months
is N6,

at what rate per annum is the interest charged? A) 21.4% B) 4%
C)

5% D) 6%

27. A man bought a television set on hire purchase for
N25,

000 out of which he paid N10,000. If he is allowed to pay the

balance in eight equal installments, find the value of each

Installment. A) N1250 B) N1578 C) N1875 D) N3125

28. A car moves at an average speed of 30kmh-1, how
long does

it take to cover 200 metres? A) 2.4Sec B) 24Sec C) 144Sec D)

240Sec

29. A man bought 2220 mangoes at N5x. He sold each for
3x

kobo and made gain of N8. Find the value of x. A) 2 B) 5 C) 6

D) 10

30. The side of a square is increased from 20cm to
21cm.

Calculate the percentage increase in its area. A) 2.5% B) 9.3%
C)

10.0% D) 10.25%

31. A house bought for N100,000 was later auctioned
for

N80,000, Find the loss percent. A) 20% B) 30% C) 40% D) 50%

32. An article bought for D5,000.00 depreciate by 15%
of its

value during the first year. Find its value after a year. A)

D425.00 B) D750.00 C) D4,250.00 D) D4,985.00

33. A trader sold a pair of shoes for C 2,800.00
making a

loss of 20% on his cost price. Find his loss as a percentage

of his selling price. A) 162/3% B) 2% C) 25% D) 75%

34. The price of a litre of petrol is increased from
C30.00 to

C 39.00 . What is the percentage increase in the cost of a
litre

of petrol ? A) 90% B) 30% C) 34% D) 39%

35. A rectangle is twice as long as it is wide. If the
width is

a, what is the length of a diagonal? A) a√2 B) a√3 C) a√5 D)

3a E) 5a

36. Last year Jose sold a painting for $2000. If he
made 25%

profit on the sale, how much had he paid for the painting? A)

$1200 B) $1500 C) $1600 D) $2400 E) $2500

37. A lacrosse team raised some money. The members
used 74% of

the money to buy uniform, 18% for equipment, and the

remaining $216 for a team party. How much money did they

raise? A) $2400 B) $2450 C) $2500 D) $2600 E) $2500

38. If the length of a rectangle is 4 times its width,
and if

its area is 144, what is its perimeter? A) 6 B) 24 C) 30 D)
60

E) 96

39. If the measures of the angles of a triangle are in
the ratio

of 1:2:3, and if the perimeter of the triangle is 30 + 10
(3)½,

what is the length of the smallest side? A) 20 B) 18 C) 15 D)
12

E) 10

40. Last year Jose sold a painting for
$2000. If he made a

25% profit on the sale, how much had he paid for the
painting?

A. $1200 C. $1500 C. $1600 D. $2400 E. $2500.

41. A lacrosse team raised some money. The members
used 74% of

the money to buy a uniform, 18% for equipment, and the

remaining $216 for a team party. How much money did they

raise? A. 2400 B. 2450 C. 2500 D. 2600

42. If the measures of the angles of a
triangle are in the

ratio of 1:2:3, and if the perimeter of the triangle is 30 +

10 (3)½, what is the length of the smallest side? A. 20 B. 18
C.

15 D. 12 E. 10

43. If the difference between the measures of the two
smaller

angles of a right triangle is 200, what is the measure, in
degrees,

of the smallest angle? A. 30 B. 35 C. 40 D. 45 E. 50

44. In an office, there was a small cash box. One day
Ann

took half of the money plus $1 more. Then Dan took half of
the

money plus $1 more. Stan then took the remaining $11. How
many

dollars were originally in the box? A. $50 B. $45 C. $42 D.

$40 E. $38

45. Each of the 10 players on the basketball team shot
100

free throws, and the average number of baskets made was 75.
When

the highest and lowest scores were eliminated the average
number

of baskets for the remaining 8 players was 79. What is the
smallest

number of baskets anyone could have made? A. 22 B. 20 C. 18
D.

16 E. 14

46. Since 1950, when Martin graduated from high
school, he has

gained 2 pounds every year. In 1980 he was 40% heavier than

in 1950. What percent of his 1995 weight was his 1980 weight?
A.

80 B. 85 C. 87.5 D. 90

47. Karen played a game several times. She received $5
every

time she won and had to pay $2 every time she lost. If the

ratio of the number of times she won to the number of times
she

lost was 3:2, and if she won a total of $66, how many times

did she play the game? A. 30 B. 35 C. 40 D. 45 E. 48

48. Henry drove 100 miles to visit a friend. If he had
driven

8 miles per hour faster than he did, he would have arrived in

of the time he actually tokes. How many minutes did the trip

take? A. 100 B. 120 C. 125 D. 144 E. 150

49. Two printing presses working together can complete
a job

in 2.5 hours. Working alone, press A can do the job in 10

hours. How many hours will press B take to do the job by

itself? A. 10/3 B. 4 C. 5 C. 25/4 E. 15/12

50. If flyers for Aardvark Cellular cost $150 per
thousand.

Approximately, how many thousand have been produced? A. 23 B.
20

C. 17 D. 14 E. 18

please help me with this objective questions

Answer #1

12 .Which one of these assets is the MOST liquid one?
Select one:
a. Land
b. A corporate bond
13. Justin pays for his groceries using a debit card. Justin is
using money as:
Select one:
a. A medium of arbitration
b. A medium of exchange
c. A unit of account
d. A store of value
e. A unit of transaction
c. A stock in a small, risky company
d. A vehicle
14. Emma, a high school student, lives with...

There are three different ways to get from
location A to location
E in the diagram below. In
path 1, you take an elevator directly from location A straight up to location E. In path 2, you walk from
A to B, climb a rope from B to C, then walk from C to E. In path 3, you walk from location
A to D, then climb a ramp up to location
E. The following questions
focus on the work...

1.
If cat weights have a distribution with mean 18 and standard
deviation of 5, what is
the sampling distribution of the sample mean for samples of size
400?
b.
The probability that someone likes pizza given they have brown
hair is 80%?
The probability that someone has brown hair is 30%. What is the
probability that
someone likes pizza and has brown hair
c. The probability that someone likes cake and has blonde hair
is 15%. The probability
that...

An unbiased coin is tossed 15 times.
1. Find the probability that the coin lands heads exactly 9
times. a. 0.0003 b. 0.3571 c. 0.6429 d. 0.1527 e. 0.4213
2. Find the probability that the coin lands tails at most 3
times. a. 0.0002 b. 0.0037 c. 0.5000 d. 0.0176 e. 0.8723
3. Find the probability that the coin lands heads at least 3
times. a. 0.0005 b. 0.9963 c. 0.9333 d. 0.0003 e. 0.8890
A computer stores receives a...

1. Which of the following is the most likely to happen if
interest rates (and thus bonds yields) were to go up?
a. Bond prices would also increase.
b. Bond coupon rates would decrease.
c. Face value of bonds would also increase.
d. Bond prices would go down.
e. Nothing, since interest rates don't affect bond prices.
2. Which of the following is the correct description of a bond
with a coupon rate of 5% and YTM of 4%?
a....

The mathematics department is considering revising how
statistics is taught. In order to see if their changes will be
effective in increasing student performance, they decided to run a
Simulated Experiment. Previous semesters have that 20% of students
receive an A in the class, 30% receive a B, and 40% receive a C.
How would you assign values so you can use a Random Digit Table to
run this experiment?
a) This experiment cannot be simulated using a random digit...

Problem 1: Which of the following equations represents a plane
which is parallel to the plane
36?−18?+12?=30
and which passes through the point (3,6,1) ?
a). 6?−3?+2?=3
b). 6?+3?−2?=34
c). 36?+18?−12?=204
d). 6?−3?+2?=2
e). 36?+18?+12?=228
Problem 2: At which point(s) does the helix r
(t)=〈cos??/4, sin??/4, ?〉 intersect the sphere ?2+?2+?2=5 ?
a). (0,1,2) and (0,−1,−2)
b). (−1,0,4) and (−1,0,−4)
c). (1,0,4) and (−1,0,−4)
d). (0,1,−1) and (0,1,1)
e). (0,1,−1) and (0,−1,1)

5 Members of the college track team in Denver (elevation 5200
feet) went up to Leadville (elevation 10,152 feet) for a track
meet. The times in minutes for these team members to run two miles
at each location are shown below. Assume the team members
constitute a random sample of track team members. Use α = 5% level
of significance to test the claim that the times were longer at
higher elevations. Team Member 1 2 3 4 5 Denver...

1. A bar chart is most likely used to display which of the
following?
Select one:
a. Either B or C
b. A nominal level variable
c. A continuous variable
d. An ordinal level variable
2.A consumer products company wants to interview customers
regarding a new product. If it wishes to adhere to a predetermined
pattern of questions in the interview, which of the following would
likely be used?
Select one:
a. Written questionnaire
b. Unstructured interview
c. Open-end questioning...

1. Find the Nash Equilibria of the following games. (Some may
have more than one!)
Player 2
D
E
F
Player 1
A
30 , 30
20 , 0
0 , 10
B
- 60 , 60
50 , 50
10 , 10
C
10 , 80
25 , 30
60 , 90
Player 2
E
F
G
H
Player 1
A
20 , 20
-5 , -5
15 , 90
15 , 15
B
5 , 70
30 ,...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 5 minutes ago

asked 6 minutes ago

asked 13 minutes ago

asked 14 minutes ago

asked 16 minutes ago

asked 17 minutes ago

asked 19 minutes ago

asked 33 minutes ago

asked 34 minutes ago

asked 34 minutes ago

asked 41 minutes ago

asked 44 minutes ago