Answer:
b) Chemistry
Step-by-step explanation:
To compare both scored we need to standardize the scores using the following equation:

Where x is the score, m is the mean and s is the standard deviation. So, 82 on chemistry is equivalent to:

Because the mean of the scores on the chemistry final exam is equal to 75 and the standard deviation is 15
At the same way, 80 on Calculus is equivalent to:

Because the mean of the scores on the calculus final exam is equal to 83 and the standard deviation is 13
Now, we can compare the values. So, taking into account that -0.2308 is lower than 0.4667, we can said that the student do better in Chemistry.
I think it’s zero. Yeah I’m sure it’s zero
Answer:
4 snack bars left
Step-by-step explanation:
12 snack bars= 1 dozen
Already ate 8 snack bars in total
12-8= 4
4 snack bars left on the plate
Answer:
The radius of the circle is already there, 11cm, and the diameter is 2 times the radius, which is 22
Step-by-step explanation:
First, you look at the radius (which is half of the circle) which is 11, then you multiply that times two to get the diameter. :)