The slope of the red line should be -3 as well since they are parallel lines
7.$56,8.-$17,500,9.$810,10.-45,11.$-45,12.-$1,368,13.$27,14.$8,848,15.$390,$209
Inverse of this question is y= -2/5x
Answer: B. This student's test grade was 2.4 standard deviations above the mean test grade.
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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:
6
Step-by-step explanation:
First you divide 12 by 3 getting 4 showing that he took 4 quizzes a week. Now you know the amount of the quizzes he takes a week. Divide the 24 by 4 you get 6 if he takes 4 quizzes a week then it must take his 6 weeks to take all 24. another way is you see that 24 is the double of twelve right? Now double the 3 weeks and and you get six.