Answer:
7.5
Step-by-step explanation:
because 7.5 x 16 = 120
Answer:
Upper P60 = 212.8
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean
and standard deviation
, the zscore of a measure X is given by:

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:

Find Upper P 60, the score which separates the lower 60% from the top 40%.
This is the value of X when Z has a pvalue of 0.6. So it is X when Z = 0.255.




Upper P60 = 212.8
Answer:
a is adjacent, b is opposite, c is the hypotenuse
Step-by-step explanation:
see the attached figure to better understand the problem
In the right triangle XYZ we have
The side a and side b are the legs and the side c is the hypotenuse (the greater side)
The side a is the adjacent side to angle Y and is the opposite side to angle X
The side b is the opposite side to angle Y and is the adjacent side to angle X
The side c is the hypotenuse
The sum of the angles X and Y is equal to 90 degrees because are complementary angles
therefore
a is adjacent, b is opposite, c is the hypotenuse
$56.25, since 25% off can also be written as ÷4, since 25 is a quarter. 75÷4=18.75
75-18.75=56.25. Therefore, the answer is $56.25