Which of the following does not illustrate randomization? A. using a random number generator to assign subjects to groups
B. using students in intact classrooms as members of groups
C. using the results of a name draw to assign subjects to groups
D. using the results of a coin toss to assign subjects to groups

B

Step-by-step explanation:

This is the answer because the other choices are using a count toss, or generator, something random unlike B, which is just using certain students as part of the group.

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

8

step-by-step explanation: