The empirical rule states that at 95% the measurements would be within 2 standard deviations of the mean.
You are given a mean of 68 inches and a standard deviation of 4.
2 times the standard deviation = 2 x 4 = 8
So 95% of the heights would be between 68-8 = 60 inches and 68+8 = 76 inches.
Answer:
63
Step-by-step explanation:
630 x .1
Answer:
$1.16 per meter
Step-by-step explanation:
You need to divide the coat by the meters.
9.28/8
= 1.16
So one meter of ribbon would cost $1.16.
X + x + x + x + 2 + 2 = 24 Length: (x + 2) = 5 + 2 = 7 inches
4x + 4 = 24 Width: (x) = 5 inches
-4 -4
4x = 20
divide by 4 on both sides
x = 5
