Question

can some1 tell me if im right

There is a positive correlation between the number of times the Striped Ground Cricket chirps per second and the temperature in degrees Fahrenheit. If a scatter plot is made with the number of chirps on the horizontal axis and the trend line is found to be y = 3x + 25, then what would you predict the number of chirps per second to be when the temperature is 55 degrees Fahrenheit?



10 *****
43
190
I think its the one with the ***

Answer 1

is y the temperature...? The question doesn't even specify it :/ it says x is chirps per second, so i guess y is temperature.

y = 3x + 25

so at 55 degrees means y=55

55 = 3x+25

Answer 2

I got 190 when I did it how my teacher told me how to do it what did you get

Answer 3

Well the question is written pretty poorly... I'm assuming x is the number of chirps per second based on " the number of chirps on the horizontal axis ", which would make y the temperature.

If you solve this:
55 = 3x+25
30 = 3x

which gives x=10.

If x is actually temperature, then

y = 3(55)+25 = 190

But the problem is the question needs to be clearer.

Answer 4

I agree