An incoming mba student took placement exams in economics and mathematics. in economics, she scored 85 and in math 86. the overall results on the economics exam had a mean of 72 and a standard deviation of 8, while the mean math score was 65, with a standard deviation of 10. on which exam did she do better compared with the other students?

Math

Step-by-step explanation:

An incoming MBA student took placement exams in economics and mathematics

Let X be the score in economics and Y be in Maths.

Overall X is N(72,8) while Y is N(65,10)

To compare both we convert both these scores to z scores

in Economic

In maths

Since z score is higher for Math, she did better in maths compared with other students than in economics.

answer: the anser is 3

step-by-step explanation:

c- 2o is equal to 9

the equation of the parallel line would be y = 2x + 9

step-by-step explanation:

to start we need to find the slope of the original line. we can do that by looking at the coefficient of x, which is 2

since the slope of the original line is 2 and parallel lines have the same slope, we know the new line will also have 2 slope. now we can use that along with the point given in point-slope form to get the find equation.

y - y1 = m(x - x1)

y - 5 = 2(x + 2)

y - 5 = 2x + 4

y = 2x + 9