Question

The dot plots below show the test scores of sixth- and seventh-grade students:

Answer 1

Based on visual inspection of the dot plots, which grade, if any, appears to have the higher mean score?

Grade 6
Grade 7
Both groups show about the same mean score.
No conclusion about mean score can be made from the data.

Answer 2

What do you think ? It's an irony younger ones are usually smarter .

Answer 3

That's a major clue right there

Answer 4

Your guess?

Answer 5

hold on

Answer 6

Take all the time you need.

Answer 7

both groups show the same mean score?

Answer 8

hmm not quite.

Answer 9

Notice that bars are usually higher on grade 6

Answer 10

That means more students in grade 6 are scoring higher than students in grade7.

Answer 11

but do u still get grade 6 as ur answer if u do the mean?

Answer 12

Yeah. Grade 6 kids are better than grade 7 kids.

Answer 13

Grade 6 has higher mean score;)

Answer 14

ok then thanks!

Answer 15

no problem