JEE MATHEMATICS MCQ: STATISTICS

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Application +4 | -1

If for a distribution

\sum(x-5)=3, \sum(x-5)^2=43

and the total number of items is 18.

Statement-I: Mean of the distribution is 4.1666.

Statement-II: Standard deviation of the distribution is 1.54.

View answer and explanation

Correct option: B

Only Statement II is true

The correct answer is None of these. The equation of tangent to

4 x^2-9 y^2=36

which are perpendicular to straight line

5 x+2 y-10=0

are not found because the roots are imaginary.

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