Answer:
x=28
Step-by-step explanation:
Answer:
99.1 is the 90th percentile of these scores.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 85
Standard Deviation, σ = 11
We are given that the distribution of score is a bell shaped distribution that is a normal distribution.
Formula:

We have to find the value of x such that the probability is 0.90
Calculation the value from standard normal z table, we have,

Putting values, we get,
Thus, 99.1 is the 90th percentile of these scores.
We normally think of 3x7, but the "7" is one more than 2 widths ... double the 3 and halve the 7 ==> 6 by 3.5 works ...
The total cost of the game would be $64.20 because 60 x 0.07% = 64.20
Answer: $1526.28
I = (3634)(0.06)(7)
I = 1526.28
When using percents, make sure to divide it by 100 and use that (0.06 instead of 6 in this problem)