Have you learned normal (bell-shaped) probability distribution in math 1324: finite math where 99.997% of observations in 3 s. d. of the mean, 95% of observations in 2 s. d. of the mean, 68% of observations in 1 s. d. of the mean, etc?

definitely a. the others have almost all data points on one side of the line.

step-by-step explanation:

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

step-by-step explanation:

answer: 12,000

step-by-step explanation: first you ar e supposed to add. then multiply then subtract