a scatter plot will not be able to be shown on this app. I suggest looking on for solutions.
3:2
for every 3 ounces of flour, you need 2 ounces of sugar
Answer:
-27
Step-by-step explanation:
Solve the system of equations by elimination
Multiply the second equation by 2
-5x + 2y = -51
-2x -2y = -12
Combine
-7x = -63
x = 9
Then, find y by plugging in 9 for x
-(9) - y = -6
-y = 3
y = -3
Then, multiply x by y
(9)(-3) = -27
Answer: B. This student's test grade was 2.4 standard deviations above the mean test grade.
====================================================
Explanation:
The z score tells us how far away the raw score is from the mean. This distance is in terms of standard deviations.
- z = 1 means we're 1 standard deviation above the mean
- z = 2 means we're 2 standard deviations above the mean
and so on.
Negative z scores indicate the raw score is below the mean.
- z = -1 means we're 1 standard deviation below the mean
- z = -2 means we're 2 standard deviations below the mean
and so on. So that's why z = 2.4 indicates the students test grade was 2.4 standard deviations above the mean.
Answer:
The answer is -11/6
Step-by-step explanation: