A grocery store sells pints of raspberries and sets the price per pint each week. The scatterplot above shows the price and the number of pints of raspberries sold for 19 weeks,

Question

How many pints of raspberries were sold when the price was $2?

Answer 1

There are 19 dots that represent the ACTUAL price and the ACTUAL number of pints sold at that price.

At a price of approximaely $2.10, there were actually 178 pints sold.

Otherwise, the question, "How many pints of raspberries were sold when the price was $2?" cannot be anwered exactly since IT NEVER HAPPENED.

The line with formula, y = 233 - 32x, is a regression line that allows approximations for values of nmber of pints for prices that never happened, but we would like to guess the result.

Only dots are actual values; the line provides guessability.

Answer 2

looks visually about 189 or about 169

as there are two dots that might be above 2

using the regression line

y = 233 -32(2) = 233-64 = 169

the dot directly above Price = $2 is either the 2nd or 3rd dot from the left

if the 2nd then y = 189, if the 3rd dot then y = 169

odds are it's 169

a magnifying glass might be helpful, a straight edge

or even a microscope to see where the dots align with prices