Question
1. The sample space listing the eight simple events that are possible when a couple has three children is{bbb, bbg,bgb, bgg,gbb, gbg,ggb, ggg}. After identifying
1.The sample space listing the eight simple events that are possible when a couple has three children is{bbb, bbg,bgb, bgg,gbb, gbg,ggb, ggg}. After identifying the sample space for a couple having fourchildren, find the probability of getting two girls and twoboys(inanyorder).
Part 1
Identify the sample space for a couple having four children.
(Use a comma to separate answers asneeded.)
Part 2
Find the probability of getting two girls and two boys(inanyorder).
(Type an integer or a decimal. Do notround.)
2. Construct the cumulative frequency distribution for the given data.
Age(years) of Best Actress when award was won | Frequency | |
20-29 | 25 | |
30-39 | 37 | |
40-49 | 14 | |
50-59 | 3 | |
60-69 | 4 | |
70-79 | 1 | |
80-89 | 2 |
...
Question content area right
Part 1
Age(years) of Best Actress when award was won | Cumulative Frequency |
Less than 30 | enter your response here |
Less than 40 | enter your response here |
Less than 50 | enter your response here |
Less than 60 | enter your response here |
Less than 70 | enter your response here |
Less than 80 | enter your response here |
Less than 90 |
3. Here are summary statistics for randomly selected weights of newborngirls: n=36, x=3197.2 g,s=692.6 g. Use a confidence level of 90% to complete parts(a) through(d) below.
Question content area bottom
Part 1
a.
Identify the critical value t/2 used for finding the margin of error.
t/2=enter your response here
(Round to two decimal places asneeded.)
Part 2
b. Find the margin of error.
E=enter your response here
g
(Round to one decimal place asneeded.)
Part 3
c. Find the confidence interval estimate of
.
enter your response here
g< g (Round to one decimal place asneeded.) Part 4 d. Write a brief statement that interprets the confidence interval. Choose the correct answer below. A. Approximately 90% of sample mean weights of newborn girls will fall between the lower bound and the upper bound. B.One has 90% confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls. C.One has 90% confidence that the interval from the lower bound to the upper bound contains the true value of the population mean weight of newborn girls. D.There is a 90% chance that the true value of the population mean weight of newborn girls will fall between the lower bound and the upper bound.
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