Question

In a psychology class, 59 students have a mean score of 98 on a test. Then 16 more students take the test and their mean score is 62.8.

What is the mean score of all of these students together? Round to one decimal place.

mean of the scores of all the students =

57 randomly selected students were asked how many siblings were in their family. Let X represent the number of pairs of siblings in the student's family. The results are as follows:

# of Siblings	0	1	2	3	4	5
Frequency	8	11	10	7	13	8

Round all your answers to 4 decimal places where possible.

The mean is:

The median is:

The sample standard deviation is:

The first quartile is:

The third quartile is:

What percent of the respondents have at least 1 siblings? %

34% of all respondents have fewer than how many siblings?

62 randomly selected students were asked the number of pairs of shoes they have. Let X represent the number of pairs of shoes. The results are as follows:

# of Pairs of Shoes	4	5	6	7	8	9	10
Frequency	8	11	7	4	16	9	7

Round all your answers to 4 decimal places where possible.

The mean is:

The median is:

The sample standard deviation is:

The first quartile is:

The third quartile is:

What percent of the respondents have at least 9 pairs of Shoes? %

0% of all respondents have fewer than how many pairs of Shoes?

Answer 1