The probability that a student is not a ...

The probability that a student is not a swimmer is 1/5. Then find the probability that out of 5 students exactly 4 are swimmer.

`.^(5)C_(4)(4/5)^(4)(1/5)`

`(4/5)^(4)(1/5)`

`.^(5)C_(1)(1/5)(4/5)^(4)xx.^(5)C_(4)`

`.^(5)C_(1)(4/5)(1/5)^(4)`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

PROBABILITY
AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION - B Objective Type Questions (One option is correct))|64 Videos
PROBABILITY
AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION - C Objective Type Questions (More than one options are correct))|21 Videos
PROBABILITY
AAKASH INSTITUTE ENGLISH|Exercise TRY YOURSELF|42 Videos
PRINCIPLE OF MATHEMATICAL
AAKASH INSTITUTE ENGLISH|Exercise Section-D:(Assertion-Reason Type Questions)|11 Videos
RELATIONS AND FUNCTIONS
AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section - J) Aakash Challengers Questions|8 Videos

Similar Questions

Explore conceptually related problems

The probability that a student is not swimmer is 1//4 . Then the probability that out of five students atleast four are swimmers is

The probability that a student is not a swimmer is 1/5 . Then the probability that out of five students, four are swimmers is (A) ^5C_4""(4/5)^4""1/5 (B) (4/5)^4""1/5 (C) ^5C_1 1/5(4/5)^4 (D) None of these

The probability that a student is not a swimmer is 1/5 . Then the probability that out of five students, four are swimmers is (A) .^(5)C_(4)(4/5)^(4)1/5 (B) (4/5)^41/5 (C) ^5C_1 1/5(4/5)^4 (D) None of these

If the probability that a person is not a swimmer is 0.3, then the probability that out of 5 persons 4 are swimmers is

The probability that a student entering university will graduate is 0.4. Find the probability that out of 3 students of the university: (i) none will graduate, (ii) only one will graduate, (iii) all will graduate.

It is given that in a group of 3 students, the probability of 2 students not having the same birthday is 0.992. What is the probability that the 2 students have the same birthday?

The probability that a student will pass his examination is 0.73, the probability of the student getting a compartment is 0.13. The probability that student will either pass or get compartment is

The probability that a student will pass his examination is 0.73, the probability of the student getting a compartment is 0.13 and the probability that the student will either pass or get compartment is 0.96.

AAKASH INSTITUTE ENGLISH-PROBABILITY-ASSIGNMENT (SECTION - A Competition Level Questions)

If X follows a binomial distribution with parameters n=100 and p=(1)...
Text Solution
|
If X has binomial distribution with mean np and variance npq, then (P(...
Text Solution
|
In a box containing 100 eggs 10 eggs are roten the probability that ou...
Text Solution
|
If a die is thrown 7 times, then the probability of obtaining 5 exactl...
Text Solution
|
A die is thrown 10 times. If getting an even number is considered as a...
Text Solution
|
In a binomial distribution, the mean is 4 and variance is 3. Then its ...
Text Solution
|
A coin is tossed successively three times. The probability of getting ...
Text Solution
|
If there are n independent trials, p and q are the probability of succ...
Text Solution
|
If in a trial the probability of a success is twice the probability of...
Text Solution
|
The probability that a student is not a swimmer is 1/5. Then find the ...
Text Solution
|
A coin is tossed 2n times. The chance that the number of times one get...
Text Solution
|
A coin is tossed 10 times . The probability of getting exactly six hea...
Text Solution
|
One coin is thrown 100 times. The probability of coming tails in odd n...
Text Solution
|
Two cards are drawn successively with replacement from a well shuff...
Text Solution
|
If x denotes the number of sixes in four consecutive throws of a dice,...
Text Solution
|
A pair of four dice is thrown independently three times. The probabili...
Text Solution
|
A die is thrown thrice. If getting a four is considered a success, the...
Text Solution
|
The items produced by a firm are supposed to contain 5% defective item...
Text Solution
|
A die is tossed thrice. A success is getting 5 or 6 on a toss. The mea...
Text Solution
|
The probability that a bulb produced by a factory will fuse after 150 ...
Text Solution
|