Q1) A kindergarten class comprises of 14 boys and 11 girls. If teacher chooses children from class using random sampling.

a) Determine the probability that first child selected will be a girl?

b) If teacher chooses random sample of n=3 children and first two children are both boys. Determine the probability that third child selected will be a girl?

Q2) What is sampling with replacement, and why it is used?

Q3) For normal distribution, recognize z-score location that would separate distribution into two sections so the there is

a) 70% in the body on the right-hand side.

b) 80% in the body on the right-hand side.

c) 75% in the body on the left-hand side.

d) 90% in the body on the left-hand side.