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JEE MAIN 2019
08-04-2019 S2
Question
A student scores the following marks in five tests : 45, 54, 41, 57, 43. His score is not known for the sixth test. If the mean score is 48 in the six tests, then the standard deviation of the marks in six tests is :
Select the correct option:
A
$\frac{100}{\sqrt{3}}$
B
$\frac{10}{\sqrt{3}}$
C
$\frac{100}{3}$
D
$\frac{10}{3}$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
Question Tags
JEE Main
Mathematics
Easy
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