Answer:
We conclude that he used a paired two-sample t-test.
Step-by-step explanation:
We know that the student measuring how gasoline prices change records the cost of gas at 10 randomly selected stations in her hometown. One week later, she records the price again at the same 10 stations.
We conclude that he used a paired two-sample t-test.
Because at each gas station, the student measured the price of gas twice.
Answer:
P(1,-1)
Step-by-step explanation:
x=5 - 4 (left towards negative x) = 1
y= -4 + 3 (up towards positive y) = -1
Answer: YES girl you should be proud
Step-by-step explanation:
Rewrite it as
3r-1=8
3r=8+1
3r=9
R= 3
Answer:
B
Step-by-step explanation:
a proportional relationship must have a straight line when graphed and it must go through the origin (0,0)
Right off the bat we can eliminate answer choice C because the line is not straight
the answer is not a nor d
the line may be straight but it does not go through the origin therefore it is not a proportional relationship
B makes a straight line and the line goes through the origin therefore B is the answer
