Questions
The probability that a student is not a swimmer is The probability that out of students exactly are swimmer is
detailed solution
Correct option is B
Let p = probability that a student selected at random is a swimmer = 1−1/5=4/5. n= number of students selected =5and X=number of swimmers Then X~B(n,p) where n=5 and p=4/5Probability that exactly 4 students are swimmer is =5C4p4q=545415=454.Similar Questions
If for a Binomial distribution the mean is 10 and the standard deviation is
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests