$Help please$

## This Post Has 3 Comments

1. Expert says:

chicken chicken chicken

step-by-step explanation:

2. Expert says:

The correct answer is d, hope this

3. carolinagarciap8kgmi says:

(a): Good course, (b): Bad course

Step-by-step explanation:

Firstly, because the standard deviation of the good course results is lower, there is less variation so he performs more consistently there.

Secondly, the trick with the second question is that while the mean of the bad course is slightly less, the standard deviation is quite a lot higher than that of the good course, so it's more likely that the highest single test score belongs to the bad course.