X= {p, q, r, s, t}, Y= {1, 2, 3}. How many one-to-one function are there from Y to X.

Janice determined there were 10 possible outcomes when tossing two coins and spinning a spinner numbered 1 through 6. what is the correct number? what might have been janice's error?

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table

How is the interquartile range calculated?