Answer:
I think it would be either $134.89 or 113.22
Step-by-step explanation:
just from an estimate, I got close to one of these two
Answer:
A
Step-by-step explanation:
Answer:
65.426
Step-by-step explanation:
Given that:
Mean height (m) = 68 inches
Standard deviation (s) = 2 inches
Height required to be taller than 90% of the class :
P(Z > x) = 0.9
The corresponding Zscore is - 1.282 (Z probability calculator)
Using the Zscore relation :
Zscore = (x - m) / s
-1.282 = (x - 68) / 2
-1.282 * 2 = x - 68
-2.564 = x - 68
-2.564 + 68 = x
x = 65.436
Answer: C add 4 to both sides
I hope this helps you !
