Forty randomly selected students were asked the number of pairs of sneakers they owned. Let X= the number of pairs of sneakers owned. The results are as follows: X Frequency Relative Frequency Cumulative Relative Frequency 1 2 2 5 3 8 4 12 5 12 7 1 a.) Find the sample mean x. (Round your answer to two decimal places.) b.) Find the sample standard deviation, s. (Round your answer to two decimal places.) c.) Find the first quartile. d.) Find the median. e.) find the 3rd quartile f.) What percent of the students owned at least five pairs? (Round your answer to one decimal place.) g.) Find the 40th percentile. h.) find the 90th percentile İ) Contruct a box plot of the data j) complete the columns of the chart k) construct a histogram of the data
Forty randomly selected students were asked the number of pairs of sneakers they owned. Let X= the number of pairs of sneakers owned. The results are as follows:
|
X |
Frequency |
Relative Frequency |
Cumulative Relative Frequency |
|
1 |
2 |
||
|
2 |
5 |
||
|
3 |
8 |
||
|
4 |
12 |
||
|
5 |
12 |
||
|
7 |
1 |
a.) Find the sample mean x. (Round your answer to two decimal places.)
b.) Find the sample standard deviation, s. (Round your answer to two decimal places.)
c.) Find the first
d.) Find the median.
e.) find the 3rd quartile
f.) What percent of the students owned at least five pairs? (Round your answer to one decimal place.)
g.) Find the 40th percentile.
h.) find the 90th percentile
İ) Contruct a box plot of the data
j) complete the columns of the chart
k) construct a histogram of the data
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