Tests of Statistics

Cumulative frequency graphs are also called:-

Which of the following are example of a variable:-

In a distribution S.D = 6 . All observations multiplied by 2 would give the result to S.D is:-

What is 0! :-

During a sale at a men's store, 16 white sweaters , 3 red sweaters, 9 blue sweaters, and 7 yellow sweaters were purchased. If a customer is selected at random, find the probability that the customer purchased a yellow or a white sweater:-

_________ is  the  simplest mean   of  dispersion:-

Relative measure of  skewness  was  introduced  by :-

When  r is  zero  than both  regression  coefficient  are :-

In a  binomial  distribution  mean  and  variance  is   Mean <  variance :-

Correlation  coefficient  is  :-

coded  method  of   calculations is  only  used  in :-

When a multiple  correlation  coefficient  r   1.2  = 1  ,  then it  shows  perfect  relationship ;-

In stratified  sampling  the  strata  should  be :-

Median is the _____-___ value;-

Total  area  under  the  normal curve  is :-

The  value  maximum   ordinate  of  a  standard  normal  curve   at  z =  0  is   :-

A part of population is called:-

The  measure  of  dispersion which  is  expressed  in terms  of  the  unit  of  the  observation  l  called ______ absolute  measure ;-

Data  classified by method   are  called ____________ data :-

Data values are ordered according to the magnitude for the calculation of:-

When a card is selected from a deck of 52 cards what are the odds in favor of getting a face card:-

The expected value of the negative binomial random variable X with parameter r = 5 and p = 0.8 is;-

In the following list

25,26,26,30,y,y,y,33,150.:-

Area  of  normal   distribution total  is  equal to ;-

Two dice are rolled. What is the probability of getting doubles of a sum of 10;-