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S seema garhwal
Total balls in urn = 25 Balls bearing mark 'X' =10 Balls bearing mark 'Y' =15   balls are drawn with replacement. Let Z be a random variable that represents a number of balls with Y mark on them in the trial. Z has a binomial distribution with n=6.    

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S seema garhwal
of people are right-handed. at most of a random sample of people are right-handed. the probability that more than   of a random sample of people are right-handed is given by,                                                                                                                  the probability that at most of a random sample of people are right-handed is given by              ...

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S seema garhwal
We have   of men and    of women have grey hair. Percentage of people with grey hairs  The probability that the selected haired person is male :                                                                                      

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S seema garhwal
  A couple has two children,  sample space  Let A be both children are females and B be  the elder child is a female.

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S seema garhwal
  A couple has two children,  sample space  Let A be both children are males and B is at least one of the children is male.  

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S seema garhwal
Let X represent number students out of 5 who are swimmers. Probability of student who are not swimmers =q                   X has a binomial distribution,n=5                                                                                                                                  Option A is correct.

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S seema garhwal
Let X represent a number of defective bulbs out of 5 bulbs. Probability of getting a defective bulb =P                   X has a binomial distribution,n=5                                                                                                                                                                                                                                                 ...

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S seema garhwal
Let X represent a number of times selecting defective items out of 12 articles. Probability of getting a defective item =P                   X has a binomial distribution,n=12                                                                                                                                                                                                                             ...

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S seema garhwal
Let X represent number of times getting 2 six  in 6 throws of a die. Probability of getting 6 in single throw of die=P                   X has a binomial distribution,n=6                                                                                                                                                                                                                                 ...

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S seema garhwal
Let X represent number of times getting 5 in 7 throws of a die. Probability of getting 5 in single throw of die=P                   X has a binomial distribution,n=7                                                                                                                                                                                                                                     ...

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S seema garhwal
Let X represent number of winning prizes in 50 lotteries.                   X has a binomial distribution,n=50.                                                                                                                                                                                                                                                                                            ...

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S seema garhwal
Let X represent number of winning prizes in 50 lotteries .                   X has a binomial distribution,n=50.                                                                                                                                                                                                                                                           

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S seema garhwal
Let X represent number of winning prizes in 50 lotteries .                   X has a binomial distribution,n=50.                                                                                                                                                                                                                                                                                            ...

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S seema garhwal
Let X represent number of correct answers by guessing in set of 5 multiple choice questions.  Probability of getting a correct answer :                                                                                                                  X has a binomial distribution,n=5.                                                                                                                ...

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S seema garhwal
X is a random variable whose binomial distribution is   Here , n=6 and  .                                                                         is maximum if   is maximum.          is maximum so for x=3 ,  is maximum.

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S seema garhwal
Let X represent the number of correctly answered questions out of 20 questions. The coin falls heads, he answers 'true'; if it falls tails, he answers 'false'.                                                          X has a binomial distribution,n=20                                                                                                                                                ...

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S seema garhwal
Let X denote a number of balls  marked with digit 0 among 4 balls drawn. Balls are drawn with replacement. X has a binomial distribution,n=4.                                                                                                      Put  X = 0,                                                                                                   

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S seema garhwal
Let X represent number of bulb that will fuse after days of use .Trials =5                   X has a binomial distribution,n=5.                               Put   ,                                                                                                                           
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