Class 10

Math

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Statistics

The following distribution gives the daily income of $50$ workers of a factory:Convert the distribution above to a less than type cumulative frequency distribution and draw its ogive

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Calculate mean deviation about mean from the following data: $x_{i}:$ 3 9 17 23 27 $f_{i}:$ 8 10 12 9 5

Find the mean deviation about median for the following data:

Calculate the median from the following data:

A batsman scores run in 10 innings as 38,70,48,34,42,55,63,46,54 and 44. The mean deviation about mean is 8.6 (b) 6.4 (c) 10.6 (d) 7.6

The following observations have been arranged in ascending order. If the median of the data is $63$, find the value of $x$.$29,32,48,50,x,x+2,72,78,84,95$

If two variates $XandY$ are connected by the relation $Y=caX+b ,wherea,b,c$ are constants such that $ac<0,then$ (a) $σ_{γ}=ca σ_{X}$ (b) $σ_{γ}=−ca σ_{X}$ (c) $σ_{γ}=ca σ_{X}+b$ (d) none of these

Calculate the mean deviation about the mean of the set of first $n$ natural numbers when $n$ is even natural number.

If the mean of the following distribution $54$, find the value of $p$: