Question

Mr. Martin was comparing two random samples of students test scores from his Algebra III 1st and 3rd block classes:

Test scores from 1st block: 92,84,85,77,60,92,68,88,76,89,94,56,72,45,66;
Mean: ≈ 76.3
Standard deviation: ≈ 14.3

Test scores from 3rd block: 72,77,84,79,66,74,88,72,73,64,82,85,74,74,97;
Mean: ≈ 77.4
Standard deviation: ≈ 8.34

What can Mr. Martin most accurately conclude between the overall class test scores of 1st and 3rd blocks?

Answer 1

hmm that 3rd block have better scores.