Question

Diastolic blood pressure readings of four patients are given below. Arrange them according to increasing median diastolic blood pressure (least median first):
1. 83, 71, 81, 79, 71
2. 90, 83, 75, 90, 89
3. 70, 72, 87, 75, 87
4. 75, 84, 81, 95, 95

• A. (B), (D), (C), (A)
• B. (C), (A), (D), (B)
• C. (A), (C), (B), (D)
• D. (A), (C), (D), (B)

Hint:

The median is the middle value in a dataset when arranged in ascending order. For an odd number of values, it is the central number; for an even number, it is the average of the two middle values.

Answer 1

The Correct Option is B

The median diastolic blood pressure for each patient is determined by arranging the values in ascending order:

1. (A): 71, 71, 79, 81, 83
   Median = 79
2. (B): 75, 83, 89, 90, 90
   Median = 89
3. (C): 70, 72, 75, 87, 87
   Median = 75
4. (D): 75, 81, 84, 95, 95
   Median = 84

Ordering the medians in increasing value yields: (C) (75), (A) (79), (D) (84), (B) (89). Therefore, the correct sequence is (C), (A), (D), (B).