Notice that the variation of the mean by observing the dot plot alone shows that there is a slight difference in the means but not one that is significant. Therefore, the correct answer is D.
<h3>What is the definition of Mean Difference?</h3>
Mean difference is a statistical term that is used to measure the definite difference between the mean value of distribution among two sets of data.
In this case, the two sets of data are data from the new balls and the data from the old ball.
See the link below for more about Mean Difference:
brainly.com/question/814700
Step-by-step explanation:
∵ MP is a straight line.
∴ ∠MNQ + ∠PNQ = 180°
∵ MP is a straight line.
∴ ∠MNR + ∠PNR = 180°
Answer:
The answer is 20. 2/5=8/20 and 1/4=5/20
Can you give me brainliest:>
Step-by-step explanation:
I think it’s proportional!
