Question

The following data represent the number of games played in each series of an annual tournament from 1924 to 2002. Complete parts (a) through (d) below. x (games played) 4 5 6 7 Frequency 19 17 20 22 (a) Construct a discrete probability distribution for the random variable x. x (games played) P(x) 4 nothing 5 nothing 6 nothing 7 nothing (Round to four decimal places as needed.) (b) Graph the discrete probability distribution. Choose the correct graph below. A. 4 5 6 7 0 0.5 x P(x) A histogram with a horizontal x-axis labeled from 3 to 8 in intervals of 1 and a vertical axis labeled "P(x)" from 0 to 0.5 in intervals of 0.1 has four vertical lines positioned on the horizontal axis tick marks. The approximate heights of the vertical lines are as follows, with the horizontal coordinate listed first and the line height listed second: 4, 0.24; 5, 0.22; 6, 0.26; 7, 0.28. B. 4 5 6 7 0 0.5 x P(x) A histogram with a horizontal x-axis labeled from 3 to 8 in intervals of 1 and a vertical axis labeled "P(x)" from 0 to 0.5 in intervals of 0.1 has four vertical lines positioned on the horizontal axis tick marks. The approximate heights of the vertical lines are as follows, with the horizontal coordinate listed first and the line height listed second: 4, 0.34; 5, 0.22; 6, 0.36; 7, 0.28. C. 4 5 6 7 0 0.5 x P(x) A histogram with a horizontal x-axis labeled from 3 to 8 in intervals of 1 and a vertical axis labeled "P(x)" from 0 to 0.5 in intervals of 0.1 has four vertical lines positioned on the horizontal axis tick marks. The approximate heights of the vertical lines are as follows, with the horizontal coordinate listed first and the line height listed second: 4, 0.14; 5, 0.12; 6, 0.16; 7, 0.18. D. 4 5 6 7 0 0.5 x P(x) A histogram with a horizontal x-axis labeled from 3 to 8 in intervals of 1 and a vertical axis labeled "P(x)" from 0 to 0.5 in intervals of 0.1 has four vertical lines positioned on the horizontal axis tick marks. The approximate heights of the vertical line are as follows, with the horizontal coordinate listed first and the line height listed second: 4, 0.34; 5, 0.32; 6, 0.36; 7, 0.38. (c) Compute and interpret the mean of the random variable x. mu Subscript xequals nothing games (Round to four decimal places as needed.) Interpret the mean of the random variable x. A. The series, if played many times, would be expected to last about 5.6 games, on average. B. The series, if played one time, would be expected to last about 5.6 games. C. The series, if played many times, would be expected to last about 4.4 games, on average. (d) Compute the standard deviation of the random variable x. sigma Subscript xequals nothing games (Round to one decimal place as needed.)

Answer #1

- X: 4 5 6 7

P(x) .24 .22 .26 .28

- First option is correct
- E(X)= 5.576923=5.6(approx. to one decimal) ,

Correct option is

A. The series, if played many times, would be expected to last about 5.6 games, on average.

d) SD= 1.138143=1.1(approx to one decimal)

The following data represent the number of games played in each
series of an annual tournament from
19331933
to
20022002.
Complete parts? (a) through? (d) below.
x? (games played)
4
5
6
7
Copy to Clipboard
+
Open in Excel
+
Frequency
1717
1515
2121
1616
?(a) Construct a discrete probability distribution for the
random variable x.
x? (games played)
?P(x)
4
nothing
5
nothing
6
nothing
7
nothing
?(Round to four decimal places as? needed.)
?(b) Graph the discrete...

3737%
of women consider themselves fans of professional baseball. You
randomly select six women and ask each if she considers herself a
fan of professional baseball. Complete parts (a) through (c)
below.(a) Construct a binomial distribution using
n equals 6n=6
and
p equals 0.37p=0.37.
x
P(x)
0
0.0630.063
1
0.2200.220
2
0.3230.323
3
0.2530.253
4
0.1120.112
5
0.0260.026
6
0.0030.003
(Round to the nearest thousandth as needed.)
(b) Graph the binomial distribution using a histogram and
describe its shape. Choose...

The following data represent the number of games played in each
series of an annual tournament from 1924 to 2005.
Complete parts (a) through (d) below.
x (games played) Frequency
4 16
5 14
6 19
7 32
(a) Construct a discrete probability distribution for the
random variable x.
(b) Graph the discrete probability distribution. Choose the
correct graph below.
(c) Compute and interpret the mean of the random variable
x.
(d) Compute the standard deviation of the random variable...

An e-commerce Web site claims that
4
%
of people who visit the site make a purchase. Complete parts a
through e below based on a random sample of
15
people who visited the Web site.
a. What is the probability that none of the people will make
a
purchase?
The probability is
nothing
.
(Round to four decimal places as needed.)
b. What is the probability that less than 3 people will make a
purchase?
The probability is
nothing...

The following game represent the number of games played in the
World Series from 1923 to 2014. Find the mean and standard
deviation. Construct the probability histogram. Use Excel to show
your work.
Number of games played
Frequency
4
18
5
18
6
20
7
35

When asked whether marriage is becoming obsolete,742 out of 2089
randomly selected adults answering a particular survey said yes. We
are testing the hypothesis that the population proportion that
believes marriage is becoming obsolete is more than 34 % using a
significance level of 0.05. One of the following figures is
correct. Indicate which graph matches the alternative
hypothesis,
p greater than 0.34
.
Report and interpret the correct p-value.
Choose the correct graph below.
A.
A graphing calculator output...

The table below lists the number of games played in a yearly
best-of-seven baseball championship series, along with the
expected proportions for the number of games played with teams of
equal abilities. Use a 0.05 significance level to test the claim
that the actual numbers of games fit the distribution indicated by
the expected proportions.
Games Played
4
5
6
7
Actual contests
17
19
23
36
Expected proportion
2/16
4/16
5/16
5/16
1). Determine the null and alternative hypotheses....

The table below lists the number of games played in a yearly
best-of-seven baseball championship series, along with the
expected proportions for the number of games played with teams of
equal abilities. Use a 0.05 significance level to test the claim
that the actual numbers of games fit the distribution indicated by
the expected proportions. Games Played 4 5 6 7 Actual contests 18
22 21 38 Expected proportion two sixteenths four sixteenths five
sixteenths five sixteenths Determine the null...

(a) Draw a scatter diagram of the data. Choose the correct
graph below.
A.
010020xy
A scatter diagram has a horizontal x-axis labeled from 0 to 10
in increments of 1 and a vertical y-axis labeled from 0 to 20 in
increments of 2. The following 5 points are plotted, listed here
from left to right: (2, 4); (4, 8); (7, 12); (7, 14); (8, 18).
B.
010020xy
A scatter diagram has a horizontal x-axis labeled from 0 to 10...

This does not copy well! Looking for the Correlation
coefficient by hand.
For the accompanying data set, (a) draw a scatter diagram of
the data, (b) by hand, compute the correlation coefficient, and
(c) determine whether there is a linear relation between x and
y.
data set.
x - 2 4 6 6 7
y - 4 8 11 12 19
Click here to view the critical values table.
LOADING...
(a) Draw a scatter diagram of the data. Choose the...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 10 minutes ago

asked 13 minutes ago

asked 28 minutes ago

asked 37 minutes ago

asked 41 minutes ago

asked 41 minutes ago

asked 43 minutes ago

asked 46 minutes ago

asked 50 minutes ago

asked 51 minutes ago

asked 1 hour ago

asked 1 hour ago