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The ages of 5 students in a population are 12, 16, 10, 14 and 13. Considering allpossible samples of size two which can be drawn with replacement from this population,find

The mean age. The standard deviation of the students.


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The ages of 5 students in a population are 12, 16, 10, 14 and 13. Considering allpossible samples of size two which can be drawn with replacement from this population,finda) The mean age.b) The standard deviation of the students.

A student goes to the library. The probability that she checks out (a) a work of fiction is0.40, (b) a work of non-fiction is 0.30, , and (c) both fiction and non-fiction is 0.20. Whatis the probability that the student checks out a work of fiction, non-fiction, or both?

Question No: 41 ( Marks: 2 )

G iven for a distribution of lengths of 200 metal bars the variance =2.271 and mean is33.9. Find coefficient of variation.



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Write down two application of Linear Programming


What are the disadvantages for the so larger & so smaller values of smoothingconstants in forecast analysis?


Find the value of Covariance Cov(X, Y) if var(X) = 81, var(Y) =16 and correlationcoefficient r=0.4?


In a school, 50% students study science subjects and 30% of them study biology. Whatis the probability that the student studies Biology?

Question No: 46 ( Marks: 3 )In

linear programming, what is meant by feasible region?

If you toss a die and observe the number of dots that appears on top face then write the eventsthat the odd number occurs.


Define frequency with example


Describe the significance of Chi-Square distribution?


Find the number of ways to arrange in a row:a) 5 people


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b)6 people


Explain the difference between Binomial distribution and negative binomial distribution with thehelp of an example.


What is the difference between median and mode? Explain with the help of and example


Three horses A, B, C are in a race; A is twice as likely to win as B, and B is twice likely to winas C then find the probability that B or C wins.


Find trimmed mean of following data8.1, 8.2, 8.3, 8.4, 8. 5 , 8.6


A coin is tossed 10 times. What is the probability that exactly 6 heads will occur?


The following data gives the height (in inches) of eleven 9-years old boys in a primary school.57 , 5 2, 5 1, 49, 55 , 5 4, 5 0, 48, 5 3, 5 6, 4 7

a) Find first, second and third quartiles. b) Find interquartile range, Quartile deviation.


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What is the slope of the line y = -3.4x - 2. 5 ?

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math not solved vu

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