subject
Mathematics, 31.03.2021 06:30 kaziyahf2006

The hair length of students in a class are normal distributed with a mean of 7 inches and standard deviation of 1.5 inches.
5) What is the probability that a random student will have hair longer than 8.5 inches?
6) What is the probability that their hair will be longer than 2.5 inches?
7) If there are 35 students in class, about how many have hair length longer than 4 inches? (Round
down to the nearest person)
8) Using the same amount of students, about how many have hair lengths between 5.5 and 11.5
inches? (Round down to the nearest person)

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 16:00
Which is the standard form for this number? (4 x 1 100 ) + (8 x 1 1,000 ) + ( 3 x 1 100,000 ) ? a) 0.004803 b) 0.04803 c) 0.0483 d) 0.483
Answers: 1
question
Mathematics, 21.06.2019 16:30
Rectangle pqrs has length a and width 4b. the x-axis bisects ps and qr what are the coordinates of the vertices
Answers: 2
question
Mathematics, 21.06.2019 21:10
What is the measure of one interior angle of a pentagon
Answers: 2
question
Mathematics, 22.06.2019 03:30
The half-life of a certain material is 0.002 second. approximately how much of a 14-gram sample will be left after 0.004 second? a. 12 grams b. 3.5 grams c. 0.06 gram d. 7 grams
Answers: 3
You know the right answer?
The hair length of students in a class are normal distributed with a mean of 7 inches and standard...
Questions
question
Mathematics, 21.05.2021 17:10
Questions on the website: 13722359