The grades on the last history exam had a mean of 75%. Assume the population of grades on history exams is known to be normally
distributed with a standard deviation of 7. What percent of students earn a score between 70% and 82%?
1 answer:
34% . <span>Since going from 75% to 82% is simply the right portion of that middle, the answer is half of 68%, or 34%.</span>
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Y=2
X= -3/2
Vertex= -3/2 and -1/4
Answer:
$6.66 and $7.04
Please give me brainliest, I really need it.
When you multiply 8•26 you get 208
Step-by-step explanation:
2;6 -> 6; -2
4;4 -> 4 ; -4
6;8 -> 8; -6
sorry English isn't my first language so I can't explain it :((
