A professor gives a test to a Statistics class. The scores are approximately normally distributed with mean 78 points and standard deviation 7 points. Find P75, the score which separates the lower 75% from the top 25%.

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.

answer: the answer is 35%

answer by yourhope:

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i think it might be a but you might want a second opinion