Question

Plot A shows the number of hours ten girls watched television over a one-week period. Plot B shows the number of hours ten boys watched television over the same period of time. Television Viewing Hours for a One-Week Period 2 dot plots with a number line going from 0 to 10. Plot A has 0 dots above 0, 1, and 2, 1 dot above 3, 2 above 4, 2 above 5, 2 above 6, 2 above 7, 0 above 8 and 9, and 1 above 10. Plot B has 0 dots above 0, 1, and 2, 1 dot above 3, 2 above 4, 3 above 5, 3 above 6, 1 above 7, and 0 above 8, 9, and 10. Which statement compares the shape of the dot plots?

Answer 1

Both mean and median are greater for Plot A than for Plot B.

Explanation:

Answer 2

Both mean and median are greater for Plot A than for Plot B.

Explanation:

Plot A :

Plot A has 0 dots above 0, 1, and 2, 1 dot above 3, 2 above 4, 2 above 5, 2 above 6, 2 above 7, 0 above 8 and 9, and 1 above 10

A : 3, 4, 4, 5, 5, 6, 6, 7, 7, 10

Mean :

(3+4+4+5+5+6+6+7+7+10) / 10 = 5.7

Median :

1/2(n+1)th term

1/2(11)th term = 1/2(11) = 5.5th term = 11/2 = 5.5

Plot B:

B : 3,4,4,5,5,5,6,6,6,7

Mean = 51 / 10 = 5.1

Median :

1/2(n+1)th term

1/2(11)th term = 1/2(11) = 5.5th term = 10/2 = 5