Kyle has run 7 laps around the track. If he plans to run 15 laps, how many more laps must he run? would i divide or multiply

The product of two negative rational numbers is always zero sometimes zero never zero

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective