Question

Need Help!

Answer 1

@tkhunny

Answer 2

You HAVE to show your work. You can't just post a problem. What are your calculations? How close did you get? What's your plan for a solution? What section are you studying in your text book or course materials. There has to be SOME clue what is going on in your head.

Answer 3

The difficulty is that you did not tell us we were to be using the Empirical Rule. You should have told us that up front!

A: Both z-scores are 2. Should be 95%, not 97%
B: Both z-scores are 1. Should be 68%, not 95%
C: Both z-scores are 1/3. We've already established that 68% is +/- 1, so this is way less than that.
D: Both z-scores are 3. Should be 99.7%. Oops! We may have tripped over it.

Answer 4

Ah C?

Answer 5

How did you get that out of my presentation? Read it again.

Answer 6

Wait B?

Answer 7

Closest

Answer 8

I'm a little stunned that you're not seeing it.

A, B, and C have comments suggesting they are the wrong answer.
D has no such comment.

Answer 9

Wow, I'm so sorry and thank you so much!