Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

CFA Events Calendar

View full calendar

CFA Events Calendar

View full calendar

This Month's Leaders

Recommended Discussions

See how our partners can help you ace your CFA exams.

Common Probability distribution

fmccrayfmccray OklahomaPosts: 20 Associate

Hello- Need help with this question please. I am not sure where the answer is 3.59%.

Thank you for taking a look in advance.


Cumulative z-table:


z 0.00 0.01 0.02 0.03

1.6 0.9452 0.9463 0.9474 0.9484

1.7 0.9554 0.9564 0.9573 0.9582

1.8 0.9641 0.9649 0.9656 0.9664


Monthly sales of hot water heaters are approximately normally distributed with a mean of 21 and a standard deviation of 5. What is the probability of selling 12 hot water heaters or less next month?

I picked 0.9641. i was wrong. it is 3.59% (Where did they calculate 3.59%)

Comments

Sign In or Register to comment.