D Question 11 The time taken by students to complete an exam is normally distributed with mean 120 minutes and standard
Posted: Sun Oct 03, 2021 12:53 pm
Question 11 The time taken by students to complete an exam is normally distributed with mean 120 minutes and standard deviation of 20 minutes. What percent of students will complete the exam in 80 minutes to 160 minutes? 68 95
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