Question 1
2 Points
The heights of persons with No. of persons is given , Heights (in Cm ): 58, 59, 60, 61, 62, 63, 64, 65 and No. of persons : 10, 18, 30, 42,35, 28, 16, 8 .
Find Karl Pearson’s coefficient of correlation.
Question 2
2 Points
The diameter , Say X , of a electric cable , is assumed to be continuous random variable with p.d.f : f(x)= 6x(1-x) , 0<=x<=1.
(1) Check that the above is a P.D.F.
(2) Obtain an expression for the c. d. f. of X.
(3) Compute P(X<=1/2| 1/3<=X<=2/3), and
(4) Determine the value of k such that P(Xk).
Question 3
2 Points
The following data is given for variable values and frequencies x: 0,1,2,3,4,5,6,7,8 and frequencies f: 1,8,28,56,70,56,28,8,1.
Find Mu one, Mu two, Mu three and Beta two of the distribution.
Question 4
2 Points
Write the objectives of AVERAGING and Characteristics of a good average.
Question 5
2 Points
Discuss relation between Binomial, Poisson and Normal Distributions
Q1: ANSWER = Follow Below link:
Q2: ANSWER =Follow Below link:
Q4:Write the objectives of AVERAGING and Characteristics of a good average.
ANSWER =
The objectives of average are-
1:The most important objective of calculating and measuring average is to determine a single figure of whole series.
2:The average describes the characteristics of the entire group.
3:Averages are helpful for taking and overview of a statistical data which ordinarily cannot be understood.
4:Averages facilitates comparison between one group and another.
Characteristics of a Good Average:
Q4:Discuss relation between Binomial, Poisson and Normal Distributions
ANSWER= Download this –> relation between
Q 3. Follow the below link: