Question
The relative frequency distribution of the number of phobias reported by a hypothetical sample of 500...
The relative frequency distribution of the number of phobias reported by a hypothetical sample of 500 college students is given as follows. 0–2 0.56 3–5 0.25 6–8 0.11 9–11 0.06 12–14 0.02 (a) What is the probability that a college student expresses fewer than three phobias? (b) What is the probability that a college student expresses more than eight phobias? (c) What is the probability that a college student has between 3 and 11 phobias?
Homework Answers
Answer #1
(a) What is the probability that a college student expresses fewer than three phobias?
Answer:0.56
(b) What is the probability that a college student expresses more than eight phobias?
Answer: 0.08
(c) What is the probability that a college student has between 3 and 11 phobias?
Answer:0.42
Not the answer you're looking for?
Similar Questions
The relative frequency distribution of the number of phobias reported by a hypothetical sample of 500...
The relative frequency distribution of the number of phobias
reported by a hypothetical sample of 500 college students is given
as follows.
0–2
0.50
3–5
0.25
6–8
0.15
9–11
0.07
12–14
0.03
(a) What is the probability that a college student expresses
fewer than three phobias?
(b) What is the probability that a college student has between 3
and 11 phobias?
College bound: A national college researcher reported that 68% of students who graduated from high school...
College bound: A national college researcher
reported that 68% of students who graduated from high school in
2012 enrolled in college. Thirty two high school graduates are
sampled. Round the answers to four decimal places.
(a) What is the probability that exactly
20
of them enroll in college?
The probability that exactly
20
of them enroll in college is .
Part 2 of 4
(b) What is the probability that more than
13
enroll in college?
The probability that more...
Among a random sample of 500 students the mean number of hours worked per week at...
Among a random sample of 500 students the mean number of hours
worked per week at non-college related jobs is 14.6. This means
lies less 0.4 standard deviations below the mean of the sampling
distribution. If a second sample of 500 students is selected what
is the probability that the second sample , the mean number of
hours worked will be less than 14.6?
1.What type of probability distribution will most likely be used to analyze the number students that...
1.What type of probability distribution will most likely be used
to analyze the number students that successfully transfer in the
following problem?
The probability that a single transfer student is accepted to
Stanford University is 0.3. If 4 students from the same community
college apply, what is the probability that no more than 2 are
accepted?
Group of answer choices
a.Poisson distribution
b.binomial distribution
c.none of the above
d.all of the above
2.The Z value is calculated as 1.86 for...
7. using the following, construct a complete frequency distribution include the mean, variance, standard deviation. Also...
7. using the following, construct a complete frequency
distribution include the mean, variance, standard deviation. Also
graph the frequency histogram, polygon and ogive. indicate modal
class, median class and describe the distribution.
class limits frequency
28-34 4
35-41 12
42-48 20
49-55 10
56-62 4
9. find the weighted mean for three exams if the first one was
worth 25% and the student received a 92, the second was worth 40%
and the student received a 86 and the third...
Consider the observed frequency distribution for the accompanying set of random variables. Perform a chi-square test...
Consider the observed frequency distribution for the
accompanying set of random variables. Perform a chi-square test
using α = 0.05 to determine if the observed frequencies follow the
Poisson probability distribution when lambda λ=1.5.
Random Variable, x Frequency, fo
0 18
1 35
2 30
3 14
4 and more 3
Total 100
What is the null hypothesis, H0?
A. The random variable follows a normal distribution.
B. The random variable does not follow the Poisson...
The following table provides a frequency distribution for the number of rooms in this country's housing...
The following table provides a frequency distribution for the
number of rooms in this country's housing units. The frequencies
are in thousands.
Rooms
No. of units
1
565565
2
1 comma 4261,426
3
10 comma 94510,945
4
23 comma 38223,382
5
27 comma 93127,931
6
24 comma 68224,682
7
14 comma 64014,640
8plus+
17 comma 28217,282
A housing unit is selected at random. Find the following
probabilities.
a. Find the probability that the housing unit obtained has four
rooms.
The...
The following frequency distribution shows the number of passengers who flew on a small regional aircraft...
The following frequency distribution shows the number of
passengers who flew on a small regional aircraft company’s flight
number 1853 for the past 50 days.
Number of passengers
on Flight 1853
Frequency (days)
Relative Frequency
Cumulative
Relative
Frequency
50 to 59
4
60 to 69
11
70 to 79
15
80 to 89
9
90 to 99
8
100 to 109
3
Use this data to construct a relative frequency
and cumulative relative frequency distribution.
Report all of your answers...
1. A random number generator is used to select a number from 1 to 500 ?(inclusively)....
1. A random number generator is used to select a number from 1
to
500 ?(inclusively).
What is the probability of selecting the number 595
?
What is the probability?
2.Identify the sample space of the probability experiment and
determine the number of outcomes in the sample space.
-Randomly choosing an even number between 10 and 20,
inclusive
The sample space is?
(Use a comma to separate answers)
There are _____ outcomes in the sample space
3. Determine the number...
67 randomly selected students were asked the number of pairs of shoes they have. Let X...
67 randomly selected students were asked the number of pairs of
shoes they have. Let X represent the number of pairs of shoes. The
results are as follows:
# of Pairs of Shoes
4
5
6
7
8
9
10
11
12
13
14
Frequency
4
3
5
7
5
4
6
6
8
7
12
Round all your answers to 4 decimal places where
possible.
The mean is:
The median is:
The sample standard deviation is:
The first quartile...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 10 minutes ago
asked 15 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 2 hours ago
asked 2 hours ago