Note All subquestions are linked Hi Please help with the fol

Note: All sub-questions are linked

Hi,

Please help with the following question;

Thanks,

c) Out of 160 families with 4 children each, how many would you expect to have i) 4 girls and ii) Either 2 or 3 boys

d) Find the probability that all the 160 families have i) 1 girl, ii) 2 girls

Solution

c) i) 16

    ii) 90

d)   i) 150

    ii) 110