Suppose a normal distribution has a mean of 16 and a standard deviation of 4.

Mathematics

2 answers:

olga55 [171]3 years ago

8 0

Answer:

Correct Answer is 2.5

Step-by-step explanation:

Lina20 [59]3 years ago

4 0

To calculate the number of standard deviations away from the mean, we first subtract the actual score from the mean, then divide the difference by the standard deviation. In this case, our actual score is 26, so we subtract from the mean of 16, then divide by the SD of 4
(26 - 16) / 4 = 2.5

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Find the orthocenter of the triangle with the given vertices: L(2, 2), M(-4, 2), N(-2, 6) a (-2, 4) b (3, -5) c (2, -4) d (-3, 5

Norma-Jean [14]

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Answer:

(a) (-2, 4)

Step-by-step explanation:

The orthocenter is the point of concurrence of the altitudes of the triangle.

A plot of the triangle vertices shows the triangle to be acute. That means the orthocenter is inside. This eliminates choices B, C, D, which are all points outside the triangle.

Conveniently, side LM is horizontal. This means the orthocenter will have the x-coordinate of the vertical line through N, which is -2. Only one answer choice has an x-coordinate of -2:

a (-2, 4)