There are 50 students in a class and the professor chooses 15 students at random. what is the probability that you or your friend joe are among the chosen students?

30% probability that Joe is among the chosen students.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the students are chosen is not important, so the combinations formula is used to solve this question.

Combinations formula:

is the number of different combinations of x objects from a set of n elements, given by the following formula.

Desired outcomes:

Joe

14 remaining students, from the remaining 49. So

Total outcomes:

15 students, from a set of 50. So

Probability

30% probability that Joe is among the chosen students.

the answer to this question is in the pic

there are 25 people coming to the party

step-by-step explanation:

the text says that there will be 22 children at this party, 1 teacher, and 2 parents. so if you add them all together (22+1+2) it will equal 25. (=25)