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13. Statistics
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Q1 of 40 Page 154

If n = 10 and Mean = 12, then Σ fx is:

We know that,



⇒ = 120

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1

Class interval grouping of data is done when:

1

The mean of 6, 4, 7, x and 10 is 8. The value of x is:

1

The mean of first three multiples of 5 is :

1

The median of 37, 83, 70, 29, 32, 42, 40 is:

Questions · 40
13. Statistics
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