Table of Contents
- 1 How many ways are there to select 3 males and 2 females out of 7 males and 5 females?
- 2 What is the probability that a male is selected then two females?
- 3 How many ways a committee of 5 members can be selected from 7 men and 5 ladies consisting of three men and two ladies?
- 4 How to calculate the number of ways to select men?
- 5 How many men and women are needed to form a committee?
How many ways are there to select 3 males and 2 females out of 7 males and 5 females?
Out of 7 men, 3 men can be chosen in 7C3 ways and out of 5 women, 2 women can be chosen in 5C2 ways. Hence, the committee can be chosen in 7C3×5C2=350 ways.
What is the probability that a male is selected then two females?
The probability that 1 male is selected and then 2 females are selected is 0.45804.
Why are males and females born in roughly a 50/50 ratio?
The sex ratio gives the proportion of males to females in a population. In most species, the sex ratio at the zygote stage is about 50:50. This is an equilibrium point: if a population ever comes to deviate from it, natural selection will drive it back. At first sight, the 50:50 sex ratio might seem inefficient.
Are there more males or females in the US?
Alaska is one of 10 states in the U.S. that has more men than women. The male to female ratio in the United States as a whole is about even, but as the population ages, there tend to be more females than males….Male to female ratio in the United States in 2018, sorted by state.
| Characteristic | Men per 100 women |
|---|---|
| – | – |
How many ways a committee of 5 members can be selected from 7 men and 5 ladies consisting of three men and two ladies?
(∵ncr=n! r! (n−r)!) Hence in a committee of 5 members selected from 6 men and 5 women consisting 3 men and 2 women is 200 ways.
How to calculate the number of ways to select men?
Approach: Since, we have to take at least k men. Totals ways = Ways when ‘k’ men are selected + Ways when ‘k+1’ men are selected + … + when ‘n’ men are selected . // This code is contributed by 29AjayKumar.
What is the probability that they are both women?
the probability that they are both women is 3/10 * 2/9 = 6/90. the probability that they are the same gender is equal to 42/90 + 6/90 = 48/90. the probability that they are the same sex and are both women at the same time is the same as the probability that they are both women.
What is the probability that 2 people will be picked?
3 are men and 2 are women. probability that 2 people picked will be men is 3/5 * 2/4 = 6/20. probability that 2 people picked will be women is 2/5 * 1/4 = 2/20.
How many men and women are needed to form a committee?
– Mathematics Stack Exchange a committee of 3 is to be formed from 6 men and 4 women. How many ways can a committee of 3 be formed? How many ways can a committee of 3 men be formed?