Question

In: Math

57 randomly selected students were asked the number of pairs of shoes they have. Let X...

57 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 11
Frequency 7 9 7 5 9 3 8 9



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 7 pairs of Shoes? ______%

13% of all respondents have fewer than how many pairs of Shoes? __________

Solutions

Expert Solution

1)

2)

third quartile is:

first quartile is :

========================

percent of the respondents have at least 7 pairs of Shoes = (5+9+3+8+9)/57*100 = 59.65%

====================

13% of all respondents have fewer than 4 pairs of Shoes


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