The average price of cell phones manufactured by Ahmadi, Inc is $98 with a standard deviation of $12 . Furthermore, it is known that the prices of the cell phones manufactured by Ahmadi are normally distributed
a. What percentage of cell phones produced by Ahmadi, Inc. will have prices of at least $120.20?
b. Cell phones with prices of at least $81.80 will get a free gift. What percentage of the cell phones will be eligible for the free gift?
c. What are the minimum and the maximum values of the middle 95% of cell phone prices?
d. If 7,218 of the Ahmadi cell phones were priced at least $119.00, how many cell phones were produced by Ahmadi, Inc.?
a. 3.13%
b. 91.15%
c. Minimum Price $74.48 Maximum Price $121.52
d. 180,000
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