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.

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

ion

step-by-step explanation:

ion ion ion ion ion ion ion ion ion ion ion