The distribution of scores on a recent test closely followed a Normal Distribution with a mean of 22 points and a standard deviation of 2 points. For this question, DO NOT apply the standard deviation rule. (a) What proportion of the students scored at least 19 points on this test, rounded to five decimal places?

(b) What is the 63 percentile of the distribution of test scores, rounded to three decimal places?

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

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answer: 1inch=7days  

12inch=12*7=84days

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the first option i believe

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the answer is

d.

5.3066 m2

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