Question 1003509
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.