Probability with permutations and combinations
There are 8 students in a class: 4 boys and 4 girls.
If the teacher picks a group of 3 at random, what is the probability that everyone in the group is a girl?

Given the statements, "a square root of 16 is 4," and "a square root of 9 is -3," complete the following blanks with the correct truth-values. p is and q is , so the statement, "a square root of 16 is 4 or a square root of 9 is -3" is .

Which equation represents the partial sum of the geometric series?

Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .