HELP PLS! AND DO NOT Put bad answers. Answer all!:

(a) The 9 members of a fraternity have the following test scores:

119, 120, 122, 123, 124, 127, 128, 130, 182

Which measure should be used to summarize the data?
a)Mean
b)Median
c)Mode
(b) As part of the U. S. Census, the number of children is reported for each family in the U. S.
Which measure gives the most common number of children for a U. S. family?
a)Mean
b)Median
c)Mode
(c) In the past 9 days, Bill has received the following numbers of email advertisements per day:

40, 42, 44, 46, 47, 48, 49, 51, 52

Which measure should be used to summarize the data?
a)Mean
b)Median
c)Mode

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;