Find the proportion of observations from the standard normal distribution that corresponds with each.
a. below a z-score of 2.64.
b. above a z-score of -0.23.
c. between z = 0.5 and z = 3.21.

y-y1=4(x-x1)

step-by-step explanation:

this is point-slope form since you only have 4 as the slope it goes in place of m

hope this : )

10/60

step-by-step explanation:

if you divide 10 by 60 the answer is 0.166666 while if you divide or solve the other problems it equals 0.6

2 2/3 hours duhh silly

step-by-step explanation:

any of them that add up to 180 degrees.