The price-earnings ratios of a sample of stocks have a mean value of 12.5 and a standard deviation of 1. if the ratios have a mound-shaped, symmetric distribution, using the empirical (68-95-99.7) rule, what can we say about the proportion of ratios that fall between:
a. 11.5 and 15.5?
b. 10.5 and 14.5?
c. in what interval would we expect to find 99.7% of price-earnings ratios?

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

your answer   is c

step-by-step explanation:

find the vertical and horizontal asymptotes of the function f x = 5 x − 1 . to find the vertical asymptote, equate the denominator to zero and solve for . since the degree of the polynomial in the numerator is less than that of the denominator, the horizontal asymptote is .

step-by-step explanation: