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Eyeglassomatic manufactures eyeglasses for different retailers. The number of days it takes to fix defects in...

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Statistics

Eyeglassomatic manufactures eyeglasses for different retailers.The number of days it takes to fix defects in an eyeglass and theprobability that it will take that number of days are in the table.Table #5.1.8: Number of Days to Fix DefectsNumber ofdaysProbabilities

1 24.9%

2 10.8%

3 9.1%

4 12.3%

5 13.3%

6 11.4%

7 7.0%

8 4.6%

9 1.9%

10 1.3%

11 1.0%

12 0.8%

13 0.6%

14 0.4%

15 0.2%

16 0.2%

17 0.1%

18 0.1%

State the random variable.

b.)Draw a histogram of the number of days to fix defects

c.)Find the mean number of days to fix defects.

d.)Find the variance for the number of days to fix defects

. e.)Find the standard deviation for the number of days to fixdefects.

f.)Find probability that a lens will take at least 16 days tomake a fix the defect.

g.)Is it unusual for a lens to take 16 days to fix a defect?

h.)If it does take 16 days for eyeglasses to be repaired, whatwould you think?

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