MATHEMATICS
JAMB 2005 - Question 45
Mathematics 2005 JAMB Past Questions - Question 45: The modal height and range of height 1.35,1.25,1.35,1.40,1.35,1.45,1.50,1.35,1.50 and 1.20 are m and r respectively. find m+2r.
A:
B:
C:
D:
Correct Answer
C
Explanation
To find the modal height and range of the given set of heights, we first need to determine the mode and range.Mode: The mode is the value that appears most frequently in the set. In this case, the height 1.35 appears 4 times, which is more than any other height. Therefore, the mode is 1.35.Range: The range is the difference between the maximum and minimum values in the set. The maximum height is 1.50, and the minimum height is 1.20. Therefore, the range is 1.50 - 1.20 = 0.30.Now, we can calculate m + 2r:m + 2r = 1.35 + 2(0.30) = 1.35 + 0.60 = 1.95Therefore, m + 2r is equal to 1.95.
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