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Variance - Jamb Mathematics Past Questions and Answers

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Jamb Mathematics Past Questions

Jamb Past Questions and Answers on Variance

Question 6:


The variance of the scores 1, 2, 3, 4, 5 is

A. 1, 2
B. 1, 4
C. 2.0
D. 3.0

View Answer & Explanation

Question 7:


Find the variance of the numbers k, k+1, k+2,

A. \(\frac{2}{3}\)
B. 1
C. K + 1
D. (k + 1)2

View Answer & Explanation

Question 8:


The variance of x, 2x, 3x, 4x and 5x is

A. X√2
B. 2x2
C. X2
D. 3x

View Answer & Explanation

Question 9:


Find the variance of 2, 6, 8, 6, 2 and 6

A. 6
B. 5
C. √6
D. √5

View Answer & Explanation

Question 10:


Find the variance of 2x, 2x-1 and 2x+1

A. 2/3
B. 2
C. √(2/3)
D. 1

View Answer & Explanation



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