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1 right skewness is also called as

A positive skewness

B negative skewness

C smitrical distribution

D none

2 in a normal distribution the area under fx function

A equal to zero

B less than zero

C greater than zero

3 Which is true

A mean is zero and standard deviation is one

B mean is zero and standard deviation is one

C mean is 1 standard deviation is one

D none

4 the normal distribution is also called

A t distribution

B quartile deviation

C standard deviation

D none

5 the number of telephone calls received by a caller belongs to

A poission

B standard deviation

C quartile deviation

D none

6 the midpoint of a distribution is

A number of lowest class and upper class limit values divided by 2

B all are added

C all are substracted

D none




Q 1


Prove that  if not then explain why ??/   marks (5)

Q 2 calculate the following values quartile and inter quartile ??


Q 3 what is the probability that one student between 14 girls and 12 boys is selected and it’s a girl ??



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sorry matrix is not copy pasting


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