Statistics Quiz 3

The A.M of a + 2, a, a – 2 is ………

The midvalue of the class 10 – 19 is …………

Cumulative frequency are used in ………… calculations.

While drawing ogive curve we take on X-axis and Y-axis the following respectively.

The mean of 10 observations is 16.3. By an error, one observation is registered as 32 instead of 23, the correct mean is …………

The mean of data is 10. If each observation is multiplied by 2 and 1 is subtracted from each result, the mean of the new observation is ………

The mean of 1, 3, 4, 5, 7, 4 is m. The numbers 3, 2, 2, 4, 3, 3, p have mean m – 1 and median q, then p + q = …………

If the median of the data : 24, 25, 26, x + 2, x + 3, 30, 31, 34 is 27.5, then (Data in the ascending order), then x …………

Constructing of a cumulative frequency table is useful in finding…………

The abscissa of the point of inter section of less than type and more than type ogive curves gives …………