Question

PLZZ HELP!! The probability of a child getting ice cream after arriving home on the last day of school is 0.8.
What is the probability that exactly 16 of 20 children in Ms Suzy’s class will get ice cream when
they get home?

Answer 1

This can be solved by using the binomial distribution:
\[\large P(16\ get\ ice\ cream)=20C16\times(0.8)^{16}\times(0.2)^{4}\]
where 20C16 is the number of combinations of the 20 children taken 16 at a time, 0.8 is the probability of getting an ice cream, and 0.2 is the probability of not getting an ice cream.

Answer 2

is it the last day of school?