SOLUTION: From a batch containing 6 boys and 4 girls a group of 4 students is to be selected.how many group formations will have exactly 2 girls write all steps?

Question 1003509: From a batch containing 6 boys and 4 girls a group of 4 students is to be selected.how many group formations will have exactly 2 girls write all steps?
Answer by jorel555(1290) (Show Source): You can put this solution on YOUR website!
The probability of selecting 4 girls, one at at time is:
.4*.4*.4*.4=.0256
The probability that ANY two girls will be picked out of 4 students is 4 choose 2, or 4!/2!2!, which equals 12.
.0256*12=.3072 which equals a 30.72% percent chance that precisely two girls will be selected.
RELATED QUESTIONS
From a group of 6 boys and 8 girls, a delegation of 10 students is chosen at random. How... (answered by jim_thompson5910)

the ratio of boys to girls in a group is 3:4. if 6 more boys join the group and 6 girls... (answered by MathLover1,MathTherapy,greenestamps)

a base ball team consisting of 5 boys and 4 girls will be formed from a group of 6 boys... (answered by greenestamps)

a committee of 5 students is to be selected at random from a group consisting of 6 boys... (answered by stanbon)

Q.1 How many ways can 4 teddy bears , 3 toy trucks , 5 dolls and 1 toy cars be... (answered by stanbon)

There is a group of 19 girls and 13 boys. How many different teams of 4 children can be... (answered by ikleyn)

From a group of 10 boys and 12 girls, a committee of 4 students is chosen at random. How... (answered by sudhanshu_kmr)

From a group of 5 boys and 4 girls, a party of 5 people is to be chosen.In how many ways... (answered by ewatrrr)

There are 6 boys and 4 girls and a group of 5 people must be formed. How many groups are... (answered by Theo)