A fair coin is tossed is fixed number of...

A fair coin is tossed is fixed number of times. If the probability of getting 4 heads equals the probability of getting 7 heads, then the probability of getting 2 heads, is

`55//2048`

`1//1024`

`3//4096`

none of these

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

DISCRETE PROBABILITY DISTRIBUTIONS
OBJECTIVE RD SHARMA ENGLISH|Exercise Section II - Assertion Reason Type|1 Videos
DETERMINANTS
OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|30 Videos
FUNCTIONS
OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|29 Videos

Similar Questions

Explore conceptually related problems

An unbiased coin is tossed is tossed a fixed number of times. If the probability of getting 4 heads equals the probability of getting 7 heads, then the probability of getting 2 heads , is

A fair coin is tossed a fixed number times . If the probability of getting seven heads is equal to that of getting nine heads then the probability of getting two heads is

A fair coin is tossed n times . If the probability of getting seven heads is equal to the probability of getting 9 heads , then the probability of getting two heads is

A fair coin is tossed a fixed number of times. If the probability of getting seven heads is equal to that of getting nine heads, the probability of getting two heads is a. 15/2^8 b. 2/15 c. 15/2^(13) d. none of these

When a coin is tossed n times, if the probability for getting 6 heads is equal to the probability of getting 8 heads, then the value of n is

What's the probability of getting heads when filliping a coin?

A coin is tossed 5 times. What is the probability of getting at least 3 heads.

A coin is tossed two times. Find the probability of getting atmost one head.

OBJECTIVE RD SHARMA ENGLISH-DISCRETE PROBABILITY DISTRIBUTIONS-Exercise

In order to get a head at least once with probability >=0.9,the minimu...
Text Solution
|
The probability that a man will hit a target in shooting practise is 0...
Text Solution
|
If A and B each toss three coins. The probability that both get the sa...
Text Solution
|
In a box containing 100 bulbs, 10 bulbs are defective. Probability th...
Text Solution
|
The box contains tickets numbered from 1 to 20. Three tickets are draw...
Text Solution
|
An unbiased coin is tossed is tossed a fixed number of times. If the p...
Text Solution
|
A coin is tossed n times. The probability that head will turn up an od...
Text Solution
|
Two coins are tossed five times. The probability that an odd number of...
Text Solution
|
A six-faced dice is so biased that it is twice as likely to show an ev...
Text Solution
|
A fair coin is tossed n times. if the probability that head occurs 6 t...
Text Solution
|
An unbiased coin is tossed n times. Let X denote the number of times h...
Text Solution
|
A fair coin is tossed is fixed number of times. If the probability of ...
Text Solution
|
A carton contains 20 bulbs ,5 of which are defective. The probability ...
Text Solution
|
In a precision bombing attack, there is a 50% chance that any one bomb...
Text Solution
|
The probability of a man hitting a target is 1/4. How many times must ...
Text Solution
|
IF the mean and S.D. of binomial distribution are 20 and 4 respectivel...
Text Solution
|
The probability of India winning a test match against West Indies is 1...
Text Solution
|
The mean and standard deviation of a binomial variate X are 4 and sqrt...
Text Solution
|
The probability distribution of a random variable X is given by. {:(...
Text Solution
|
For a binimial variate X with n=6, if P(X=4)=(135)/(2^(12)) then its v...
Text Solution
|