Important questions about Skewness,Kurtosis and Moments. Skewness,Kurtosis and Moments MCQ questions with answers. Skewness,Kurtosis and Moments exam questions and answers for students and interviews.

If for a distribution the difference of first quartile and median is greater than difference of median and third quartile then the distribution is classified as

Options

A : a. absolute open ended

B : b. positively skewed

C : c. negatively skewed

D : d. not skewed at all

If the first quartile and third quartile are as 32 and 35 respectively with the median of 20 then distribution is skewed to

Options

A : a. lower tail

B : b. upper tail

C : c. close end tail

D : d. open end tail

If the beta one is 9, beta two is 11 then coefficient of skewness is

Options

A : a. 0.589

B : b. 0.689

C : c. 0.489

D : d. 0.889

The measurement techniques used to measure the extent of skewness in data set values are called

Options

A : a. measure of distribution width

B : b. measure of median tail

C : c. measure of tail distribution

D : d. measure of skewness

The statistical measures such as average deviation, standard deviation and mean are classified as part of

Options

A : a. deciles system

B : b. moment system

C : c. percentile system

D : d. quartile system

The method of calculating skewness which is based on the positions of quartiles and median in a distribution is called

Options

A : a. Gary's coefficient of skewness

B : b. Sharma's coefficient of skewness

C : c. Bowley's coefficient of skewness

D : d. Jack Karl's coefficient of skewness

The median of a moderately skewed distribution is 8, third quartile is 12, first quartile is 8 and inter-quartile range is 4 then relative coefficient of skewness is

Options

A : a. ±8

B : b. ±1

C : c. ±9

D : d. ±11

The moment about population mean which is expressed in standard units is denoted by

Options

A : a. Latin letter beta

B : b. Greek letter gamma

C : c. Greek letter alpha

D : d. Greek letter beta

The convenient summarizing method which is used to describe the population characteristics rather than explaining samples of that population is classified as

Options

A : a. unstable moments

B : b. stable moments

C : c. lower moments

D : d. higher moments

The moment about mean which is indication whether distribution is symmetrical or asymmetrical is considered as

Options

A : a. first moment

B : b. third moment

C : c. second moment

D : d. fourth moment

The kurtosis defines the peakness of the curve in the region which is

Options

A : a. around the mode

B : b. around the mean

C : c. around the median

D : d. around the variance

The frequency distribution is considered as negatively skewed if all the values of distribution moves to

Options

A : a. lower tail

B : b. median tail

C : c. variance tail

D : d. upper tail

In kurtosis, the beta is greater than three and quartile range is preferred for

Options

A : a. mesokurtic distribution

B : b. mega curve distribution

C : c. leptokurtic distribution

D : d. platykurtic distribution

In measures of skewness, the absolute skewness is equal to

Options

A : a. mean+mode

B : b. mean-mode

C : c. mean+median

D : d. mean-median

Considering the moments in standard units, the fourth alpha with power 1 is equivalent to

Options

A : a. beta three

B : b. beta four

C : c. beta one

D : d. beta two

For the Karl Pearson's skewness coefficient the value of skewness must be in limits

Options

A : a. ±3

B : b. ±5

C : c. ±4

D : d. ±2

The distribution is considered leptokurtic if

Options

A : a. beta three is less than three

B : b. beta two is greater than two

C : c. beta three is greater than three

D : d. beta two is greater than three

The statistical measures such as deciles, percentiles, median and quartiles are classified as part of

Options

A : a. percentile system

B : b. quartile system

C : c. deciles system

D : d. moment system

For the ungrouped data in calculation of moments from mean, the formula to calculate this measure is

Options

A : a. 1?n ?(x-mean)r

B : b. 2?n ?(x-mean)r

C : c. 2?n ?(x+mean)r

D : d. 2?n ?(x+mean)x

The coefficient of skewness method in which the basis of measuring is deciles and percentiles is classified as