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 3 2 3 3 7 4 13 5 l3 6 1 Part (a) Find the sample mean x. (Round your answer to two decimal places.) Part (b) Find the sample standard deviation, 5. (Round your answer to two decimal places.) Part (c) Construct a histogram of the data. Part (d) Complete the columns of the chart. (Round your answers to three decimal places.) X FrequencyRelative FrequencyCumulative Relative Frequenc l 3 2 3 3 7 4 13 5 13 6 1 Part (e) Find the rst quartile. Part (1') Find the median. Part (9) Find the third quartile. Part (h) Construct a box plot of the data. Part (i) What percent of the students owned at least five pairs? (Round your answer to one decimal place.) % Part (j) Find the 40th percentile. Part (k) Find the 9O"h percentile