Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-2>Q 28

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IMPORTANT

Earn 100

Median of $5$ observations i.e. $3^{\log_{9} 4}, 5^{\log_{\frac{1}{2}} 8}, e^{2 \ln 3}, \ln (\frac{1}{e} 2) + 3, e^{2 \ln 3 + \frac{1}{\log_{4} e}} : -$

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Important Questions on Statistics

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IMPORTANT

Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-2>Q 29

Median of

{}^{2 n}C_{0}, {}^{2 n}C_{1}, {}^{2 n}C_{2}, \dots, {}^{2 n}C_{n}

(when

n

is even) is-

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IMPORTANT

Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-2>Q 30

The mean deviation from mean of observations

5, 10, 15, 20, \dots \dots \dots 85

is:-

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Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-2>Q 31

If standard deviation of variate

x_{i}

is

10

, then variance of the variate

(50 + 5 x_{i})

will be-

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IMPORTANT

Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-2>Q 32

The

S . D .

of the numbers

31, 32, 33, \dots, 47

is-

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Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-2>Q 33

The sum of the squares deviations for 10 observations taken from their mean

50

is

250

. The coefficient of variation is

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Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-2>Q 34

The median and standard deviation

(S . D .)

of a distribution will be, If each term is increased by

2

-

HARD

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IMPORTANT

Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-2>Q 35

If

{\bar{X}}_{1}

and

{\bar{X}}_{2}

are the means of two series such that

{\bar{X}}_{1} < {\bar{X}}_{2}

and

\bar{X}

is the mean of the combined series, then-

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IMPORTANT

Beta Question Bank for Engineering: Mathematics>Chapter 24 - Statistics>EXERCISE-2>Q 36

The median of

19

observations of a group is

30

. If two observations with values

8

and

32

are further included, then the median of the new group of

21

observation will be