11th class statistics chapter 8 Probability Distribution,Probability Distribution,important definitions and short questions,1st year class

 Hey dear student here you will see the important definitions and short questions of chapter 8 Probability Distribution. I am also going to share guess paper for upcoming papers inshallah very soon.Only request is to subscribe to our youtube channel Welcome Academy.

 

Title : 11th class statistics chapter 8 Probability Distribution,Probability Distribution,important definitions and short questions,1st year class

Chapter 8 probability distribution ,class 11th,1st year class

 

(IMPORTANT   SHORT QUESTIONS) CHAPTER 8

Questions	Answers
1) Given a random variable with E(x)=200 and s.d=5 then find E(x)2?	We know that
2) Define mathematical expectation.	It is defined as the sum of product of a discrete random variable with their corresponding probabilities. The mathematical expectation of X variable is denoted by  E(X) and is defined by
3) For what value of a constant “k” the function For x=-1, 0, 1, 2 is the distribution function.	X -1 0 1 2 Total f(x) 3k 2k k o 6k   Using property
4) Given  that  E(2x)=10  and  E(2x)2=500, determine S.D(x)	We know that
5) Two coins are tossed. Let X= number  of ‘heads then find the probability distribution X.	S={HH.HT.TH,TT} The distribution of X is given below X 0 1 2 Total P(X) 1/4 2/4 1/4 1
6) How the random numbers are generated?	Random number generation is the generation of sequence of numbers and usually generated by computer software OR manual.

 

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