1 answer:
Since it's normally distributed, we can apply the emperical rule. The middle 95% will be within two standard deviations of the mean, so that means:
18-2(1.5), 18+2(1.5)=15,21
So we want the first option.
You might be interested in
Answer:
3x^2+1
Step-by-step explanation:
B. I=PRT is the simple interest formula. 120 days is 4 months, or 1/3 of a year.
I=(4,000)(0.05)(0.33333)
I=$66.67
Answer:
There are 3 terms.
Answer:
w = 10, l = 14
Step-by-step explanation:
perimeter = 2w + 2l
width = w
length = 3w - 16
48 = 2(w) + 2(3w - 16)
48 = 2w + 6w - 32
48 = 8w - 32
80 = 8w
w = 10
since w= 10,
l = 3(10) - 16 = 14
I mean a real easy answer is 1/2
