Step-by-step explanation:
We know that,

Where,
X = raw score = 84
μ = mean = 68
σ = standard deviation = 10
Putting the values,

The percent of his sales that were less than or equal to 84 inches, is

Therefore, the remaining 100-94.5=5.5% were more than 84 inches.
Answer:
42.92
Step-by-step explanation:
Can you explain it more clear because my english is not very good, I want to easy to help you
Answer:
11
Step-by-step explanation:
12/6 =2 +9=11
:)