AP EAPCET 2024 - 20th May Morning Shift | Statistics Question 5 | Mathematics

$x$ and $y$ are the arithmetic means of the runs of two batsmen $A$ and $B$ in 10 innings respectively and $\sigma_A, \sigma_B$ are the standard deviations of their runs in them. If batsman $A$ is more consistent than $B$, then he is also a higher run scorer only when

$0<\frac{\sigma_A}{\sigma_B}<\frac{\bar{x}}{\bar{y}}, \frac{\bar{x}}{\bar{y}}>1$

$\frac{\bar{x}}{\bar{y}}>\frac{\sigma_A}{\sigma_B}>1$

$\frac{\bar{x}}{\bar{y}}<\frac{\sigma_A}{\sigma_B}<1$

$\frac{x}{\bar{y}}>1,1 \leq \frac{\bar{x}}{\bar{y}}<\frac{\sigma_A}{\sigma_B}$

AP EAPCET 2024 - 19th May Evening Shift

MCQ (Single Correct Answer)

-0

If $m$ and $M$ denote the mean deviations about mean and about median respectively of the data $20,5,15,2$, $7,3,11$, then the mean deviation about the mean of $m$ and $M$ is

$\frac{1}{7}$

$\frac{38}{7}$

$\frac{36}{7}$

$\frac{37}{7}$

AP EAPCET 2024 - 18th May Morning Shift

MCQ (Single Correct Answer)

-0

For a set of observations, if the coefficient of variation is 25 and mean is 44 , then the variance is

121

110

AP EAPCET 2022 - 5th July Morning Shift

MCQ (Single Correct Answer)

-0

If the mean deviation of the data $$1,1+d 1+2 d, \ldots, 1+100 d,(d>0)$$ from their mean is 255, then '$$d$$' is equal to

10.1

10.2

10.3

10.4

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