Thread: Can someone shine a flashlight on my brain and help me

This website seems to be really helpful. I hope someone can help me with these three problems.

1. Consider a member of the Olympic shooting team who is shooting clay pigeons and a member of the Olympic diving team. Each is competing for a score. Who is conducting a sequence of Bernoulli trials?

a. neither
b. the diver
c. the shooter
d. both

2. A heart surgeon has a 95 percent success rate. What is the probability that at least 8 of his next 9 patients will survive?

.299
.929
.531
.033
.630

3. A fisherman captured several fishes and measured their length. He determines that the lengths are normally distributed with a mean of 109.5 cm and standard deviation of 9.5 cm. You would expect nearly all of the fishes to be below what length?

a. 88cm
b. 98cm
c. 109cm
d. 125cm
e. 140cm

The man shooting clay pigeons is performing a bernoulli trial because a bernoulli trial satisfies the following:

1. Each trial has two possible outcomes, generically called success and failure.
2. The trials are independent. Intuitively, the outcome of one trial has no influence over the outcome of another trial.
3. On each trial, the probability of success is p and the probability of failure is 1 - p.

Answer 1.c