subject
Mathematics, 06.11.2020 01:00 curtisepps

The mean score on a calculus exam was 40 and the standard deviation was 5. The teacher decided to double everyone's score, and then added 7 points.

What are the values of the mean and standard deviation of the distribution of transformed exam scores?

mean = 80 and standard deviation = 5

mean = 80 and standard deviation = 10

mean = 87 and standard deviation - 5

mean 87 and standard deviation =10

mean = 87 and standard deviation = 17
mean

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 17:50
F(x) = x2 โˆ’ 9, and g(x) = x โˆ’ 3 f(x) = x2 โˆ’ 4x + 3, and g(x) = x โˆ’ 3 f(x) = x2 + 4x โˆ’ 5, and g(x) = x โˆ’ 1 f(x) = x2 โˆ’ 16, and g(x) = x โˆ’ 4 h(x) = x + 5 arrowright h(x) = x + 3 arrowright h(x) = x + 4 arrowright h(x) = x โˆ’ 1 arrowright
Answers: 2
question
Mathematics, 21.06.2019 18:40
Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.
Answers: 3
question
Mathematics, 22.06.2019 01:30
The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.
Answers: 1
question
Mathematics, 22.06.2019 01:30
Find the vertex for the parabola given by the function ฦ’(x) = โˆ’3x2 โˆ’ 6x.
Answers: 2
You know the right answer?
The mean score on a calculus exam was 40 and the standard deviation was 5. The teacher decided to do...
Questions
question
Mathematics, 15.04.2020 23:14
question
Geography, 15.04.2020 23:14
Questions on the website: 13722361