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JEE MATHEMATICS MCQ: STATISTICS

1 Easy

1 of 1

Application +4 | -1

If the mean and variance of six observations 7, 10, 11, 15,

a

,

b

are 10 and

\frac{{20}}{3}

respectively, then the value of

\left| {a - b} \right|

is equal to

View answer and explanation

Correct option: D

1

Option D (1) is correct because solving the mean and variance equations leads to two possible values for a and b, resulting in |a-b| = 1.

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