Mathematics Homework Help

Answer the following questions using the data Set 3-1

A student was interested in the structure of the families in the U.S. He sampled 29 of his 330 classmates asking the question, “How many children are there in your family?” He compiled the answers into a simple frequency distribution:

X	7	5	4	3	2	1
f	1	2	3	6	10	7

1.What is the mean?

2.What should be the symbol of a mean calculated for these data?

3.What is the median?

4.What is the mode?

Answer the following questions using the data set 4-2

5

3

9

7

6

5.What is the range?

6.Compare the variability of the scores of 10, 11, 9, 10, 11, 9 with the variability of data set 4-2.

7.If you consider data set 4-2 to be a population, what is the standard deviation

8.What is the deviation score of the raw score of 7 in data set 4-2