Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-1>Q 30

EASY

JEE Main/Advance

IMPORTANT

Earn 100

The mean deviation from the median is

26.67% studentsanswered this correctly

Important Questions on Statistics

EASY

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-1>Q 31

The variates

x

and

u

are related by

h u = x - a,

then correct relation between

σ_{x}

and

σ_{u}

is

MEDIUM

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-1>Q 32

S.D. of first

n

natural numbers is

MEDIUM

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-1>Q 33

The variance of observations

112, 116, 120, 125, 132

is:

MEDIUM

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-1>Q 34

If

\sum_{i = 1}^{10} (x_{i} - 15) = 12

and

\sum_{i = 1}^{10} {(x_{i} - 15)}^{2} = 18

, then the

S . D .

of observations

x_{1}, x_{2}, ........, x_{10}

is:

MEDIUM

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-1>Q 35

The

S . D .

of

7

scored

1, 2, 3, 4, 5, 6, 7

is:

HARD

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-1>Q 36

The variance of series

a, a + d, a + 2 d, ......, a + 2 n d

is:

EASY

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-1>Q 37

Variance is independent of change of-

EASY

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-1>Q 38

If the coefficient of variation and standard deviation of a distribution are

50 %

and

20

respectively, then its mean is: