Question

Calcuate D4 and D8 following data 10, 15, 7, 8, 12, 13, 14, 11, 9

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Answer 1

Answer:

correct answers is 15.

Explanation:

hope it's help full.

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Answer 2

For the given data the values of D4 and D8 is 3.6 and 7.2 respectively.

• Decile divides a given data that is arranged into descending order into ten equal parts.
• For ungrouped data the formula of deciles is as follows:

• Di = (N + 1) * i / 10

Therefore,

Let us first arrange the given data in ascending order.

7,8,9,11,12,13,14,15

N = 8

D4 = (8+1)*4/10

= 3.6

D8 = (8+1)*8/10

=7.2