The missing choices are:
A. z-score = 92 - 83
B. z-score = (92 - 83)/5
C. z-score = 83 - 92
D. z-score = (92 - 83)/92
The expression she would write to find z-score is z-score =
⇒ B
Step-by-step explanation:
The rule of z-score is z = (x -μ)/σ, where
- x is the score
- μ is the mean
- σ is the standard deviation
The scores of an eighth-grade math test have a normal distribution
∵ The mean is 83
∴ μ = 83
∵ The standard deviation is 5
∴ σ = 5
∵ Din’s test score was 92
∴ x = 92
- Substitute all of these values in the formula of z-score
∴ z-score = 
The expression she would write to find z-score is z-score = 
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The slope is 1/3 (m=1/3)
Y=1/3x+7
Answer:
frequency I
7 I
6 I .
5 I .
4 I .
3 I . . .
2 I . . . .
1 I . . . . .
3 4 5 6 7 8
Step-by-step explanation:
left side is the frequency bottom is the number of books
put one dot for the frequency of the books
She ate 3 cookies, then gave away half. Because parentheses means that process happens first, and c represents the number of cookies, the equation would be as follows:
(c-3)÷2, or A
Multiply the three numbers.