Mrs. Starnes enjoys doing Sudoku puzzles. The time she takes to complete an easy puzzle can be modeled by a Normal
distribution with mean 5.3 minutes and standard deviation 0.9 minute.
What percent of easy Sudoku puzzles take Mrs. Starnes between 6 and 8 minutes to complete?

Respuesta :

Answer:

.2164

Explanation:

P(6<x<8) = P(x<8)-P(x<6)

P(x<8)= (8-5.3)/.9 = 3 = .9987

P(x<6)= (6-5.3)/.9 = .78 = .7823

.9987-.7823= .2164

0.9 grudge fr go high

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