Mathematics
Mathematics, 03.12.2019 13:31, jones2279

1.
use technology or a z-score table to answer the question.

the expression p(z< 1.45) represents the area under the standard normal curve below the given value of z.

what is p(z< 1.45)?

0.0735

0.0749

0.9251

0.9265

2.use technology or a z-score table to answer the question.

the scores on a standardized test are normally distributed with a mean of 500 and a standard deviation of 60. jake scored 520 on the test.

what percent of students scored below jake?

round your answer to the nearest whole number.

33%

57%

63%

72%

3.use technology or a z-score table to answer the question.

lengths of newborn girls are normally distributed with a mean of 49.2 cm and a standard deviation of 1.8 cm. consider a group of 2000 newborn girls.

approximately how many girls will be 51 cm or shorter?

1683

1856

1928

1964

4.the number 0.9967 represents the area under the standard normal curve below a particular z-score.

what is the z-score?

enter your answer, as a decimal to the nearest hundredth, in the box.

5.use technology or a z-distribution table to find the indicated area.

suppose ages of cars driven by company employees are normally distributed with a mean of 8 years and a standard deviation of 3.2 years.

approximately 75% of cars driven by company employees are older than what age?

2.1

4.8

5.9

10.2

answer
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 15:10, nancyrj3824
What is 20+(5 x 2/5 )+ 3 show your work
Answers: 2
image
Mathematics, 21.06.2019 17:30, aliami0306oyaj0n
Lindsay used two points, (x, y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?
Answers: 2
image
Mathematics, 21.06.2019 20:30, audrey435
Hi if you want to play a sports related kahoot go to kahoot. it and type in this code: 659344
Answers: 1
image
Mathematics, 21.06.2019 23:00, jjjoooorrrrddddaannn
3.4a=57.8 what is the the value of a
Answers: 2
Do you know the correct answer?
1.
use technology or a z-score table to answer the question.

the expression p(z<...

Questions in other subjects:

Konu
Mathematics, 30.05.2020 03:59