The mean of five observations is 5 and their

JEE Main 2019

10-01-2019 S1

Question

The mean of five observations is 5 and their variance is 9.20. If three of the given five observations are 1, 3 and 8, then a ratio of other two observations is

Select the correct option:

4 : 9

6 : 7

10 : 3

5 : 8

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Mathematics

Medium

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