3 years ago

MATH QUESTION PLEASE HELP!

Mathematics

1 answer:

dalvyx [7]3 years ago

4 0

Its B HOPE THIS CAN HELP YOU

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An analyst must decide between two different forecasting techniques for weekly sales of roller blades: a linear trend equation a

Amiraneli [1.4K]

Answer:

Following are the responses to the given question:

Step-by-step explanation:

Mean Absolute Deviation MAD

$MAD = \sum_{i=1}^{n} \frac{\left | actual_{i}-forecast_{i} \right |}{n}$

Mean squared error

$MSE=\Sigma^{n}_{i=1} \frac{(Actual_i - Forecast_i)^2}{(n - 1)}$

linear trend equation is $Ft = 124 + 2t$

$MAD = \frac{23}{10} = 2.3\\\\MSE = \frac{91}{9}= 10.11\\\\$

Naive method

$MAD = \frac{36}{9} = 4\\\\MSE = \frac{202}{8}=25.25\\\\MAD (Naive) = 4\\\\MAD (Linear) =2.3\\\\MSE (Naive)=25.25\\\\MSE (Linear)=10.11\\\\$

Please find the attached file.

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3 years ago

What is the term that contains the same variables raised to the same powers

stepan [7]

Answer: I think the term is “Like Terms”

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3 years ago

Dan's car depreciates at a rate of 6% per year. By what percentage has Dan's car depreciated after 4 years? Give your answer to

Westkost [7]

Answer:

it's easy you need to do 6%×4 it's 24%

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3 years ago

Find the volume of the sphere with radius of 9 cm. Round your answer to the nearest whole number and please be sure to include y

bija089 [108]

Answer:

3054cm rounded to the whole number

Step-by-step explanation:

4/3xxr^3

would become 4/3 x x 9^3

once you do all of the math you get 3054 cm.

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Arisa [49]

the reciprocal/ answer is 4/37

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