the dot - plot below displays the difference in scores for 18 games between a high school soccer team and…

the dot - plot below displays the difference in scores for 18 games between a high school soccer team and its opponent. which letter represents the approximate location of the mean difference in score? difference in score -2 -1 0 1 2 3 4 a b c d team score minus opponent score

the dot - plot below displays the difference in scores for 18 games between a high school soccer team and its opponent. which letter represents the approximate location of the mean difference in score? difference in score -2 -1 0 1 2 3 4 a b c d team score minus opponent score

Answer

Explanation:

Step1: Count number of dots per value

-2 has 1 dot, -1 has 2 dots, 0 has 2 dots, 1 has 3 dots, 2 has 7 dots, 3 has 3 dots, 4 has 1 dot.

Step2: Calculate sum of products

[(-2\times1)+(-1\times2)+(0\times2)+(1\times3)+(2\times7)+(3\times3)+(4\times1)= - 2-2 + 0+3 + 14+9 + 4=26]

Step3: Calculate mean

Total number of games (n = 18). Mean (\bar{x}=\frac{26}{18}\approx1.44)

Answer:

C