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Question 9 3 Quiz The following data give the weights (in pounds) lost by 15 members of a health club at the end of 2 months after joining the club. 4 23 9 19 12 49 13 12 17 64 6 17 14 a. Compute the values of the three quartiles and the interquartile range. Study 0, -C QR b. Calculate the approximate value of the 82hd percentile. Enter an exact value. c. Find the percentile rank of 12. Round your answer to the nearest integer
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Ascending order of the given data 4,4,4,6,6,9,9,12,12,13,14,17,17,19,23 1th term S+)h term -4 term Q1-6 Q2nth term15+1)th terb) 82nd percentile 0.82*(15+1)- 13.12 term 82nd percentile 13th term +0.12(14th term-13th term) 17+0.12*(19-17) 17+0.24 17.24 c) Percentile of rank 12 is 100%-46.67% or 47% 15

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