Here are the answers I have gotten it down to... Someone please help me out.

-18.00

0.06

18.00

-0.06

Find the area under the standard normal curve between z = 1.5 and z = 2.5.

0.9332

0.9938

0.0606

0.9816

The probability that a tennis set will go to a tiebreaker is 19%. In 260 randomly selected tennis sets, what is the mean and the standard deviation of the number of tiebreakers?

mean: 49.4; standard deviation: 7.02851336

mean: 49.4; standard deviation: 6.32566202

mean: 46.8; standard deviation: 7.02851336

mean: 46.8; standard deviation: 6.32566202

The local lottery sets up a game wherein a player has a chance of collecting $750.

The player must choose a 3-digit number and if it matches, the player receives $750

It costs $1 to play the game.

What is the expected profit (or loss) for each player.

No words, if it's a loss of $0.02, write it as -$0.02

NOT loss of 2 cents.

The FORMAT that is expected :

$4.00, -$4.00 etc. (Neither of which is correct!)

I have no idea on this question!!