# Regression - Statistics?

Can anyone explain why they got 150000? My guess would've been 5100.

Thanks!

### 2 Answers

Relevance

- 4 weeks agoBest Answer
The problem is due to the unit of the equation.

It says

Sales = 100 + 10*(Ad) where Sales are in 1000 dollars unit

where (Ad) is in $100 dollars units

so Ad = $500 in $100 dollar units is 500/100 = 5

so put 5 into the equation

Sales = 100 + 10*5 = 150 (in $1000 dollars )

so

Sales = 150*1000 = $150,000

- PuzzlingLv 74 weeks ago
You need to input the advertising in $100s.

So the input for $500 is just 5.

You get an output of 150. But that's in $1000s, so that is $150,000

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