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 1 2 2 4 8 4 12 5 12 6 2 O Part (a) Find the sample mean x. (Round your answer to two decimal places.) O Part (b) Find the sample standard deviation, s. (Round your answer to two decimal places.) Part (c) O Part (d) Complete the columns of the chart. (Round your answers to three decimal places.) x Frequency Relative Frequency Cumulative Relative Frequency 2 2 4 3 8. 4 12 5 12 A Part (e) 2. 3. 6. 1,

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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.
Frequency
1
2
2
4.
3
8.
4
12
5
12
O Part (a)
Find the sample mean x. (Round your answer to two decimal places.)
O Part (b)
Find the sample standard deviation, s. (Round your answer to two decimal places.)
O Part (c)
O Part (d)
Complete the columns of the chart. (Round your answers to three decimal places.)
Frequency
Relative Frequency
Cumulative Relative Frequency
1
2
4.
8
4
12
5
12
6
O Part (e)
Find the first quartile
O Part (f)
Find the median.
O Part (g)
Find the third quartile.
O Part (h)
O Part (i)
What percent of the students owned at least five pairs? (Round your answer to one decimal place.)
%
O Part (j)
Find the 40h percentile.
O Part (k)
Find the 90th percentile.
Transcribed Image Text: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. Frequency 1 2 2 4. 3 8. 4 12 5 12 O Part (a) Find the sample mean x. (Round your answer to two decimal places.) O Part (b) Find the sample standard deviation, s. (Round your answer to two decimal places.) O Part (c) O Part (d) Complete the columns of the chart. (Round your answers to three decimal places.) Frequency Relative Frequency Cumulative Relative Frequency 1 2 4. 8 4 12 5 12 6 O Part (e) Find the first quartile O Part (f) Find the median. O Part (g) Find the third quartile. O Part (h) O Part (i) What percent of the students owned at least five pairs? (Round your answer to one decimal place.) % O Part (j) Find the 40h percentile. O Part (k) Find the 90th percentile.
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