The time needed to complete a final examination in a particular college course is normally distributed with a mean of 79 minutes and a standard deviation of 8 minutes. answer the following questions.
what is the probability of completing the exam in one hour or less (to 4 decimals)?
what is the probability that a student will complete the exam in more than 60 minutes but less than 75 minutes (to 4 decimals)?
assume that the class has 60 students and that the examination period is 90 minutes in length. how many students do you expect will be unable to complete the exam in the allotted time (to the nearest whole number)?

a) 0.0088

b) 0.2997

c)  5

Step-by-step explanation:

Given : Mean : minutes

Standard deviation : minutes

The formula for z-score :

a) For x = 60 minutes

The p-value =

b) For x = 75 minutes

The p-value =

c) For x = 90 minutes

The p-value =

If the number of students in the class = 60 .

Then , the number of students will be unable to complete the exam in the allotted time =

domain is all the x values included in the

0 ≤ x ≤ 2

range is all the y values of the graph

-2 ≤ y ≤ 2

***keep in mind that there are different ways to show domain and range

hope this !

~just a girl in love with shawn mendes

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value