The accompanying data represent the ideal number of children for a random sample of 900 adults. Complete parts (a) through (d) below. A Click the icon to view the data about ideal numbers of children. ...... 6 (Round to three decimal places as needed.) (b) Draw a graph of the probability distribution. Choose the correct graph below. OB. Oc. OD. Ideal Number of Children Q Ideal Number of Children Ideal Number Ideal Number of Children of Children 0.6- 0.6 0.6 0.6 0.5- 04- 0.1+ 0.2 0. 012346 6 01234 6 & Number of Children ói 2346 6 Number of Children ói2 345 6 Number of Children Number of Children (c) Compute and interpret the mean of the random variable X. The mean is children. (Round to one decimal place as needed.) Which of the following interpretations of the mean is correct? O A. If any number of adults were surveyed, one would expect the mean ideal number of children to be the mean of the random variable. O B. The observed ideal number of children will be equal to the mean ideal number of children for most adults. C. The observed ideal number of children will be less than the mean ideal number of children for most adults. O D. If many adults were surveyed, one would expect the mean ideal number of children to be the mean of the random variable. (d) Compute the standard deviation of the random variable X. The standard deviation is children. (Round to one decimal place as needed.)
The accompanying data represent the ideal number of children for a random sample of 900 adults. Complete parts (a) through (d) below. A Click the icon to view the data about ideal numbers of children. ...... 6 (Round to three decimal places as needed.) (b) Draw a graph of the probability distribution. Choose the correct graph below. OB. Oc. OD. Ideal Number of Children Q Ideal Number of Children Ideal Number Ideal Number of Children of Children 0.6- 0.6 0.6 0.6 0.5- 04- 0.1+ 0.2 0. 012346 6 01234 6 & Number of Children ói 2346 6 Number of Children ói2 345 6 Number of Children Number of Children (c) Compute and interpret the mean of the random variable X. The mean is children. (Round to one decimal place as needed.) Which of the following interpretations of the mean is correct? O A. If any number of adults were surveyed, one would expect the mean ideal number of children to be the mean of the random variable. O B. The observed ideal number of children will be equal to the mean ideal number of children for most adults. C. The observed ideal number of children will be less than the mean ideal number of children for most adults. O D. If many adults were surveyed, one would expect the mean ideal number of children to be the mean of the random variable. (d) Compute the standard deviation of the random variable X. The standard deviation is children. (Round to one decimal place as needed.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The accompanying data represent the ideal number of children for a random sample of 900 adults. Complete parts (a) through (d) below.
Click the icon to view the data about ideal numbers of children.
Ideal number of children data
.....
(a) Construct a discrete probability distribution for the random variable x.
x (# of children) Frequency O
x (# of children)
P(x)
11
1
30
1
512
3
259
2
4
68
3
18
6
2
4
5
6.
(Round to three decimal places as needed.)
Print
Done
(b) Draw a graph of the probability distribution. Choose the correct graph below.
O A.
O B.
Oc.
D.
Ideal Number
of Children
Ideal Number
of Children
Ideal Number
of Children
Ideal Number
of Children
0.6-
0.5-
0.4
0.3-
0.2-
0.1-
0-
012 34 5 6
0.6-
0.5-
0.4-
0.3-
0.2-
0.1-
0.6-
0.5-
0.4-
0.3-
0.2-
0.1-
0.67
0.5-
0.4-
0.3-
0.2-
0.1-
0 1 2 3 45 6
0 12 3 456
0 1 2 3 4 5 6
Number of Children
Number of Children
Number of Children
Number of Children
(c) Compute and interpret the mean of the random variable X.
The mean is
children.
(Round to one decimal place as needed.)
Which of the following interpretations of the mean is correct?
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Transcribed Image Text:The accompanying data represent the ideal number of children for a random sample of 900 adults. Complete parts (a) through (d) below.
Click the icon to view the data about ideal numbers of children.
.....
(Round to three decimal places as needed.)
(b) Draw a graph of the probability distribution. Choose the correct graph below.
O A.
В.
O D.
Ideal Number
of Children
Ideal Number
of Children
Ideal Number
of Children
Ideal Number
of Children
0.67
0.5-
S 04-
0.3-
0.2-
0.1-
0.6-
0.5-
0.4-
0.3-
0.2-
0.1-
0.6-
0.5-
0.4-
0.3-
0.-
0.1-
0.6-
0.5-
0.4-
0.3-
0.2-
01-
0 12 3 4 5 6
Number of Children
0 1 2 3 4 5 6
0 1 2 3 456
0 1 2 3 4 56
Number of Children
Number of Children
Number of Children
(c) Compute and interpret the mean of the random variable X.
The mean is
children.
(Round to one decimal place as needed.)
Which of the following interpretations of the mean is correct?
O A. If any number of adults were surveyed, one would expect the mean ideal number of children to be the mean of the random variable.
B. The observed ideal number of children will be equal to the mean ideal number of children for most adults.
C. The observed ideal number of children will be less than the mean ideal number of children for most adults.
D. If many adults were surveyed, one would expect the mean ideal number of children to be the mean of the random variable.
(d) Compute the standard deviation of the random variable X.
The standard deviation is
children.
(Round to one decimal place as needed.)
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