subject
Mathematics, 21.12.2019 21:31 moon3194

The scores on a final exam were approximately normally distributed with a mean of 82 and a standard deviation of 11. if 85 students took the exam, and above a 60 is a passing grade, how many students failed the exam?
a. 13

b. 1

c. 2

d. 12

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 15:00
Five dinosaurs go for a walk and come across some lovely chicken wings. their names are rexy, bronto, steggy, paly, and terry. there are exactly 5 dozen wings(equal enough for each dino to have a dozen right? ); however, terry is on a diet and he only eats 6 wings. if paly eats 2 more than terry, steggy eats 4 more than paly, and bronto and rexy eat the same amount because they are really hungry from not eating all day, how many chicken wings did each dino eat?
Answers: 1
question
Mathematics, 21.06.2019 20:30
Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"
Answers: 2
question
Mathematics, 21.06.2019 21:50
What is the rate for one gallon of gasoline
Answers: 3
question
Mathematics, 21.06.2019 22:20
In a young single person's monthly budget, $150 is spent on food, $175 is spent on housing, and $175 is spend on other items. suppose you drew a circle graph to represent this information, what percent of the graph represents housing?
Answers: 1
You know the right answer?
The scores on a final exam were approximately normally distributed with a mean of 82 and a standard...
Questions
question
Arts, 26.03.2021 22:40
question
Mathematics, 26.03.2021 22:40
question
Mathematics, 26.03.2021 22:40
question
Geography, 26.03.2021 22:40
question
Social Studies, 26.03.2021 22:40
Questions on the website: 13722363