Mathematics, 25.02.2020 21:21 maay101

The time for a professor to grade an exam is normally distributed with a mean of 16.3 minutes and a standard deviation of 4.2 minutes.

What is the probability that a randomly selected exam will require between 14 and 19 minutes to grade?

A.0.4477

B.0.3175

C.0.3804

D.0.5837

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 16:30, SkyeShadow525

The length of the largest fish is 967.74 times greater than the length of the smallest fish. select a variable expression that shows the length of the largest fish, if 8 is the length of the smallest fish. a. s + 967.74 b. \[ \frac{967.74}{s} \] c. 967.74 - s d. 967. 74s

Answers: 1

continue

Mathematics, 21.06.2019 19:10, KaliBratz

Alogical argument that is presented in graphical form using boxes and arrows is called?

Answers: 1

continue

Mathematics, 21.06.2019 19:20, SmolBeanPotato

Aefg - almn. find the ratio of aefg to almn. a)1: 4 b)1: 2 c)2.1 d)4: 1

Answers: 1

continue

Mathematics, 21.06.2019 20:30, kuddlebugsmommy

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.

Answers: 1

continue

You know the right answer?

The time for a professor to grade an exam is normally distributed with a mean of 16.3 minutes and a...