Which sentence correctly describes a data set that follows a normal distribution with a standard deviation of 4 and a mean of 14?
A. 68% of the data points lle between 10 and 14.
B. 68% of the data points lle between 8 and 12.
C. 68% of the data points lle between 10 and 18.
D. 68% of the data points lle between 10 and 16.

C. 68% of the data points lie between 10 and 18.

Step-by-step explanation:

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15

hi there, i would be interested to you with your test, may you add the questions and answer options.

- : )