Hi there, I am studying and answering these questions and would like to see if my answers match yours, would you PLEASE share the step by step process, just in case my answer does not match yours I SEE my error or mistake?

1. Suppose, as is roughly true, the amount of money U.S. smokers spend on cigarettes each year is distributed normally with a mean () of $1,250 anda standard deviation () of $220.

(a) (5 pts.) What is the probability that a single randomly selected smoker in the U.S, spends more than $1,350 each year on cigarettes?

(b) (5 pts.) What is the probability the average of 10 randomly selected smokers in the U.S. spends more than $1,350 each year on cigarettes?

2. A spinner can land on numbers 1, 2, or 3. Each of these outcomes is equally likely.

(a) (4 pts.) If the spinner is spun twice and the sum of the two spins is recorded, what is the sample space?

(b) (3 pts.) What is the probability the sum will be 4?

(c) (4 pts.) Let A be the event the first spin is 1. Let B be the event the second spin is even. Explain if events A and B are or are not disjoint.

C

90%

95%

99%

z*

1.645

1.960

2.576