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# Stats Help Watch

1. Could anyone help me with these two questions? I've struggled with this for a week now. Thanks
2. (Original post by Molochop)
Could anyone help me with these two questions? I've struggled with this for a week now. Thanks
For the first one;

Let W = weight of the fruit

then W~N(32, 7^2)

so find P(W>40)

Hint below: (if you need it)
Spoiler:
Show
standardize W and use Z tables
3. Alright thanks, so what do you do with the 1300? nothing?
4. (Original post by Molochop)
Alright thanks, so what do you do with the 1300? nothing?
the 1300 pieces of fruit is kind of like a part 2 to the question, find the probability first then for the second part I think you just multiply percentage by 1300

5. thank you for your help. I've got it now. Could someone help me with this too? Would you use the sum of the frequency of the mean when calculating SD or the sum of the frequency x X divided by the sum of the frequency? Also need help on the second part. What do you do after calculating the probability? Divide by the number of students then multiply by 100? Thanks. I've been so stuck on this as well.

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Updated: February 25, 2016
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