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 17:30, christinaaaat
Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling
Answers: 2
image
Mathematics, 21.06.2019 18:30, chandranewlon
Agraphic designer created a logo on eight and a half by 11 inch paper. in order to be placed on a business card, the logo needs to be one and 7/10 inches by 2 and 1/5 in. what is the scale factor of the dilation
Answers: 1
image
Mathematics, 21.06.2019 21:00, lunnar2003
Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x βˆ’ 8 y is greater than or equal to negative 5 over 2 times x plus 5 part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points) part b: is the point (5, βˆ’8) included in the solution area for the system? justify your answer mathematically. (4 points)
Answers: 3
image
Mathematics, 21.06.2019 23:30, puppylover72
Find each value of the five-number summary for this set of data. [note: type your answers as numbers. do not round.] 46, 19, 38, 27, 12, 38, 51 minimum maximum median upper quartile lower quartile
Answers: 1
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, 04.10.2021 14:00