2005
Mathematics
JAMB
The model height and range of heights 1.35, 1.25, 1.35, 1.40, 1.35, 1.50, 1.35, 1.50, and 1.20 are m and r respectively. Find m+2r.
A.
1.35
B.
1.65
C.
1.95
D.
3.00
Correct Answer: 1.95
Explanation
1.35, 1.25, 1.35, 1.40, 1.35, 1.50, 1.35, 1.50, and 1.20 Modal height = 1.35 Range (r) = 1.50 - 1.20 = 0.30 ∴m + 2r = 1.35 + 2(0.30) = 1.35 + 0.60 = 1.95
1.35, 1.25, 1.35, 1.40, 1.35, 1.50, 1.35, 1.50, and 1.20 Modal height = 1.35 Range (r) = 1.50 - 1.20 = 0.30 ∴m + 2r = 1.35 + 2(0.30) = 1.35 + 0.60 = 1.95THIS WEEK's
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