Scores on an exam are normally distributed with a mean of 67.5 and a standard deviation of 10. Find the percent of the scores that satisfy each question. a)Less than 32

b)At least 70

c)Between 56 and 66

C

Step-by-step explanation:

-22

Step-by-step explanation:

Use the order of operations, PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction) to solve:

We see the parentheses portion (33-3), so we do that first. 33 - 3 = 30.

Now, we see the exponent part , so we do that next. = 5 * 5 = 25.

We see the divide, so we do that third. We have 30 / 10 = 3.

Finally, we do the subtraction. 3 - 25 = -22

The answer is -22.

Hope this helps!