Answer:
The First one
Step-by-step explanation:
Just divide r/s and substitute x by 6.
Answer:
8 5/12 is closer to 8
31 1/6 is closer to 31
Step-by-step explanation:
A=bh
A=4(10)
A= 40 inches squared
Given:
μ = 200 lb, the mean
σ = 25, the standard deviation
For the random variable x = 250 lb, the z-score is
z = (x-μ)/σ =(250 - 200)/25 = 2
From standard tables for the normal distribution, obtain
P(x < 250) = 0.977
Answer: 0.977