There are 25 students in a science class. Twenty percent of the students are randomly selected to participate in a teacher evaluation. How many combinations of students are possible?

53,130 possible combinations

Step-by-step explanation:

First, we want to find how much is the 20% of 25.

This is:

N = (20%/100%)*25 = 5.

So 5 students out of 25 are selected.

When we want to calculate the number of combinations of N elements it a group of K elements, we have:

Here N = 25, and K = 5

so we have 53,130 combinations.

the answer to your question a or b but i am pretty sure it is b. i hope this : )

step-by-step explanation:

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step-by-step explanation:

i took the test: )