Answer:
.
Step-by-step explanation:
Answer:
Part A -
Part B -
Step-by-step explanation:
Answer:
2x+6
10x-20
8x+1
6x-24y
Step-by-step explanation:
so what you do is multiply the number outside of the bracket by the numbers inside while keeping their repective symbol.
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.