SOLUTION: Hello, I would like help putting getting the domain and range for this set of data Temp Ice Cream Sales 80 $200 79 $215 68 $100 84 $250 89 $320 87 $300 75 $130

Click here to see ALL problems on Functions

Question 1188659: Hello,
I would like help putting getting the domain and range for this set of data
Temp Ice Cream Sales
80 $200
79 $215
68 $100
84 $250
89 $320
87 $300
75 $130
73 $120
79 $150
92 $400
94 $420
93 $400
87 $380
60 $70
40 $30

Found 2 solutions by Boreal, Theo:
Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website!
domain is x and independent variable, which is the one on the left.
it is [40, 94]
range is y, the dependent variable, and on right.
It is [$30, $420]

Answer by Theo(13342) (Show Source):
You can put this solution on YOUR website!
this looks like a correlation type study that determines the relationship between the temperature and the amount of ice cream sales.

the online calculator at https://stats.blue/Stats_Suite/correlation_regression_calculator.html can provide you with the answer that you need.

the calculator tells you that the the regression line y = 8.1149x - 406.0414 with r = .8882 and r^2 = .7889.

the regression line is the straight line of best fit to the data.
the r tells you how strong the correlation is in a positive or negative diretion.
the r^2 tell you how much of the data can be explained by the relatioship.

here's a reference on r versus r^2.
https://quantifyinghealth.com/relationship-between-r-and-r-squared/

your domain is the temperature.
your range is the dollars sales of ice cream when the temperature is as indicated.

to input the data, you have to remove the dollar signs as the calculator only takes numerator data.

here's a display of the calculator input and output.