Question

The following data shows the number of days prom tickets have been on sale and the total number of tickets sold. what is the linear regression equation to match the data?

Day (x) 1 2 5 7 10
Number of prom tickets sold (y) 30 35 55 60 70

Answer 1

Linear regression is the relationship between two variables x and y

One variable is dependent and the other one is explanatory variable

Regression line equation is shown in the attachment please have a look at it.

Table and graph is shown in the file attached.

`R^2\text{is the regression over two variables}`

x represents the number of days prom tickets have been on sale.

y represents total number of tickets sold.