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1. Use technology or a z-distribution table to find the indicated area.

The weights of tomatoes in a bin are normally distributed with a mean of 120 grams and a standard deviation of 4.3 grams.

Approximately 40% of the tomatoes weigh less than which amount?

 

111 g

114 g

117 g

119 g

 

2. 

Use technology or a z-score table to answer the question.

The expression  P(z<1.33) represents the area under the standard normal curve below the given value of z.

What is  P(z<1.33)?

0.0918

0.0934

0.9066

0.9082

Guest Apr 30, 2018
 #1
avatar+88839 
0

1.

 

x  - 120

_______   =  -0.25

  4.3  

 

x - 120  =  -1.075

 

120 - x  =  1.075

 

x =  118.925 ≈  119 g

 

 

cool cool cool

CPhill  Apr 30, 2018

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