Question 5

Mathematics Statistics Easy

The 10th and 50th percentiles of the observation 32, 49, 23, 29, 118 respectively are

(A) 21, 32
(B) 23, 32
(C) 23, 33
(D) 22, 31
View Dynamic Solution & Explanation
Correct Solution: Option B

Step-by-step Solution:

We arrange the data in ascending order: \( 23, 29, 32, 49, 118 \quad n = 5 \) observations. To find \( P_{50} \): \[ P_{50} = 50 \frac{(n+1)}{100} = \frac{50}{100} \times 6 = 3^{\text{rd}} \text{ observation} \] Thus, \( P_{50} = 32 \). To find \( P_{10} \): \[ P_{10} = \frac{10}{100} \times 6 = 0.6 = 1^{\text{st}} \text{ observation} \] Thus, \( P_{10} = 23 \).