12 / 27 = 4/h Cross multiply
12h = 27 * 4 Notice top and bottom is equated to top and bottom of the two you have not yet used.
12h = 108 Divide by 12
h = 108 / 12
h = 9
C <<<<<-===== answer.
Answer:
86
Step-by-step explanation:
Mean scores of first test =
Standard deviation of first test scores =
Mean scores of second test =
Standard deviation of second test scores =
We have to find if a student scores 29 on his first test, what will be his equivalent score on the second test. The equivalent scores must have the same z-scores. So we have to find the z-score from 1st test and calculate how much scores in second test would result in that z-score.
The formula for z-score is:
Calculating the z-score for the 29 scores in first test, we get:
This means, the equivalent scores in second test must have the same z-scores.
i.e for second test:
Rounding of to nearest integer, the equivalent scores in the second test would be 86.
Answer: D {1,1,2,2,3,4}; p(1) = 0.33 i think
Step-by-step explanation: if it is right mark me as brainliest
Clara is currently 12 because 38 divided by two minus 7 is 12. Next, you need to do 38-12 and you'd get 26 so that's the answer