Calculate P15 for the data given below:
6, 24, 36, 12, 20, 10
Show answer & explanation
Correct answer: A
Explanation
Write the data in ascending order:
6, 10, 12, 20, 24, 36
Total observations, n = 6
Position of P₁₅ = 15(n + 1)/100
= 15 × 7/100
= 1.05th term
P₁₅ = 6 + 0.05(10 − 6)
= 6 + 0.2
= 6.2