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Verdich [7]
3 years ago
7

If the MAD for a forecast is 3.2, we can say that a. The forecast is 3.2 units too high on the average b. The forecast is 3.2 un

its too low on the average c. The forecast is accurate within plus or minus 3 percent d. The forecast is accurate within plus or minus 3.2 units e. The forecast is accurate within plus or minus 10.24 units
Mathematics
1 answer:
Rudik [331]3 years ago
3 0

Answer:

The forecast is accurate within plus or minus 3.2 units

Step-by-step explanation:

Mean Absolute Deviation is a statistical measure of dispersion from forecast. It measures accuracy level of predicted forecast, by averaging the difference between absolute value of each error from forecasted value.

MAD for a forecast states that : Forecast is accurate within the expected range variation of Mean Absolute Deviation.

So : If the MAD for a forecast is 3.2, we can say that -  The forecast is accurate within plus or minus 3.2 units

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What's the smallest possible perimeter of a rectangle with an area of 35 cm? (36 small squares 1 cm by 1 cm)
vfiekz [6]

Answer:

12 miles per hour...........

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3 years ago
Substitution method<br>4x + y = 14<br>6x - 3y = 3​
lakkis [162]

Answer:

  • x = 2.5
  • y = 4

Step-by-step explanation:

<u>We know that:</u>

  • 4x + y = 14
  • 6x - 3y = 3

<u>Let's first solve for y by choosing any equation.</u>

  • 4x + y = 14
  • => y = 14 - 4x

<u>Now, let's substitute the value of y into the second equation.</u>

  • 6x - 3y = 3
  • => 6x - 3(14 - 4x) = 3
  • => 6x - 42 + 12x = 3
  • => 18x - 42 = 3
  • => 18x = 42 + 3
  • => 18x = 45
  • => x = 45/18 = 5/2 = 2.5

<u>Now, let's substitute the value of x into the equation of y.</u>

  • => 14 - 4x = y
  • => 14 - 4(2.5) = y
  • => 14 - 10 = y
  • => y = 4

Hence, the value of x and y are 2.5 and 4 respectively.

3 0
3 years ago
What are the steps to find the value of b ?
vazorg [7]
The angles should add to 540, so
b+ (3/2)b+(b+45)+(2b-90)+90=540

First combine like terms
5.5b+45=540

Then subtract 45 from both sides
5.5b=495

Divide both sides by 5.5
b=90

Final answer: b=90
6 0
3 years ago
Find the value of y so that the points (-2, 5) and (8, y) lie on a line with slope -1/5
Alja [10]

Answer:

3

Step-by-step explanation:

\frac{ {3} - 5 }{8 + 2}  =   \frac{ - 2}{1 0}  =   \frac{ - 1}{5}

4 0
3 years ago
Simplify the expression. –(10)–2<br><br><br> 100<br><br> –100
miss Akunina [59]

Answer:

-12, 0

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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