A national standardized test is graded on a scale from 1 to 5. The scores for a particular school are given below. Ifa student is chosen at random, what is the probability that they scored a 4 or a 5?
No. of Students Score
5
4
45
75
50
20
10
3
2
1
O A 22.5%
B. 45%
O c. 60%
OD. 75%
OE 90%

If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

Nikolas calculated the volume of the prism. his work is shown below.