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3 years ago

Paula's grades on her history tests this semester are: 79,93, 92, 86, and

Mathematics

2 answers:

Vinvika [58]3 years ago

5 0

Answer:

4.4

Step-by-step explanation:

Data set = 79, 93, 92, 86, 90

Xmean = (79 + 93 + 92 + 86 + 90)/5

= 440/5

Xmean = 88

MAD =

(79 - 88) + (93 - 88) + ( 92 - 88) + ( 86 - 88) + ( 90 - 88)/ 5

(9) + (5) + (4) + (2) + (2)/ 5

22/5

Mean Absolute Deviation = 4.4

bagirrra123 [75]3 years ago

4 0

Answer:

The MAD is 4.4.

Step-by-step explanation:

1. 79+93+92+86+90/5= 88= Mean.

2. Apply |values - mean| 9+5+4+2+2=22

3. Divide by total of values, 22/5= 4.4.

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3 years ago

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2 years ago

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A blimp can be seen flying at an altitude of 5500 feet above a motor speedway during a race. The slanted distance directly to th

Vladimir [108]

Answer:

The expression of h as function of x is h = $\sqrt{(d + 5500) (d - 5500)}$

Step-by-step explanation:

Given as :

The distance of blimp (AB) = 5500 feet

The slanted distance to the pagoda (BC) = d feet

The horizontal distance (AC) = h

Let the angle made between slanted distance and horizontal distance be Ф

So , cos Ф = $\frac{AC}{BC}$ = $\frac{h}{d}$

And sin Ф = $\frac{AB}{BC}$ = $\frac{5500}{d}$

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So, $(\frac{h}{d})^{2}$ = $1 - (\frac{5500}{d})^{2}$

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3 years ago

On a certain map. 2.5 inches represents 15 miles. Bay City and Greenwood are 4 inches apart on the map. What is the actual dista

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