- #1

- 28

- 0

a) at least 450 days?

b) less than 150 days?

etc.

Throughout the examples in the book im studying, i am not making much sence of this.

Would be appreciated for some advice were to start.

Thanks

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter recoil33
- Start date

- #1

- 28

- 0

a) at least 450 days?

b) less than 150 days?

etc.

Throughout the examples in the book im studying, i am not making much sence of this.

Would be appreciated for some advice were to start.

Thanks

- #2

rock.freak667

Homework Helper

- 6,230

- 31

a) at least 450 days?

b) less than 150 days?

etc.

Throughout the examples in the book im studying, i am not making much sence of this.

Would be appreciated for some advice were to start.

Thanks

You can say that the 400 is the mean. They gave you the standard deviation, so you can find the variance.

Then you just need to 'standardize' the distribution as tables will give you P(Z) where Z=(X-μ)/σ

- #3

- 28

- 0

Well thank makes it a bit more clear, Thanks for that.

Share: