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What is the 50th percentile of the data

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The following table shows 40 different hours representing the number of youtube viewers watching an ad, sorted and arranged in rows of 5. What is the 50th percentile of the data?

"1 " " 3 " " 3 " " 6 " " 9 "
"11 " " 14 " " 15 " " 18 " " 21 "
"23 " " 27 " " 30 " " 30 " " 31 "
"32 " " 32 " " 43 " " 45 " " 47 "
"47 " " 52 " " 53 " " 54 " " 56 "
"58 " " 63 " " 67 " " 68 " " 72 "
"75 " " 77 " " 80 " " 81 " " 84 "
"84 " " 86 " " 89 " " 94 " " 97 "

Reference no: EM132581597

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