Who is asking: Student
(a) what is the probability, in a random poll of 60 children form the age of 0 to 11, that more than 15 children are in day care at least 20 h per week? nearest tenth of one %
(b) what is the probability, in a random pool of 60 children that fewer than 20 are in day care at least 20 h per week?
I dont know if these answers are right please help me out.
Use the Z-score and the standard normal distribution to answer these questions. The mean in this case will be 60*.32=19.2 and the standard deviation is 3.61. After this you need to use normal tables to find the answer.Andrei