Imran uses dry ice to pack ice cream for shipping. The dot plot shows the density, in kilograms per cubic decimeter, of 15 blocks of the dry ice Imran uses.
1.2 1.3 1.4 1.5 1.6
Density of dry ice
(kilograms per cubic
decimeter)
Which of the following is the closest estimate to the percentile for a block of the dry ice with a density of
kg
1.5 ?
dm

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

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answer is b

tip: look up videos or do research on a question

hoped this !