Question

the double bar graph shows results for boys and girls on a mathematics test in seven countries. consider the data displayed in the graph. complete parts (a) and (b) below.
a) which group scored higher on the test, boys in country e or girls in country d? estimate the scores.
the boys in country e scored about 540. (round to the nearest ten as needed.)
the girls in country d scored about 510. (round to the nearest ten as needed.)
the boys in country e scored higher on the test.
b) of the countries shown on the graph, which has the greatest spread between boys and girls scores?
country has the greatest spread between boys and girls scores. this could be due to cultural factors in the country. educational practices. more girls taking the test. more boys taking the test.

Explanation:

Step1: Analyze part (a)

Read values from graph. Boys in country E ≈ 540, girls in country D ≈ 510.

Step2: Analyze part (b)

For each country, find difference between boys' and girls' scores.
For country A: |470 - 465| = 5
For country B: |510 - 505| = 5
For country C: |515 - 510| = 5
For country D: |540 - 510| = 30
For country E: |540 - 565| = 25
For country F: |575 - 560| = 15
For country G: |490 - 480| = 10
The greatest difference is 30 for country D.

Answer:

a) The boys in country E scored higher on the test.
b) Country D has the greatest spread between boys' and girls' scores.