The owner of a car wash wants to see if the arrival rate of cars follows a Poisson distribution. In order to test the assumption of a Poisson distribution, a random sample of 150 ten-minute intervals was taken. You are given the following observed frequencies: Number of Cars Arriving
in a 10-Minute Interval Frequency
0 3
1 10
2 15
3 23
4 30
5 24
6 20
7 13
8 8
9 or more 4
150
At the .05 level of significance, the conclusion of the test is that the:.
a. null hypothesis cannot be rejected.
b. arrival of cars does not follow a Poisson distribution.
c.10-minute intervals follow a Poisson distribution.
d. arrival of cars has no distribution.

go on the tube you might find some information there

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?