Posted by **Sarah S-Help!** on Tuesday, April 12, 2011 at 11:27am.

A particular fruit's weights are normally distributed, with a mean of 308 grams and a standard deviation of 31 grams.

The heaviest 9% of fruits weigh more than how many grams?

Give your answer to the nearest gram.

- Statistics -
**bobpursley**, Tuesday, April 12, 2011 at 11:36am
so 91 percent weight X or below.

I get about 349 grams.

check it here.

http://davidmlane.com/hyperstat/z_table.html

- Statistics -
**PsyDAG**, Wednesday, April 13, 2011 at 12:20pm
You can also find table in the back of your statistics text labeled something like "areas under normal distribution" to find that proportion related to a Z score.

Z = (score-mean)/SD

Insert values and solve for score.

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