Agroup of friends is going out for pizza, and they decide that each person gets to choose one topping for the pizza. there are 44 friends, and there are 99 toppings to choose from. how many ways can the 44 friends make a pizza from 99 toppings, if they each choose a different topping? there are __[blank]__ ways the 44 friends can make a pizza from 99 toppings.

Aregression was run to determine if there is a relationship between hours of tv watched per day (x) and number of situps a person can do (y). the results of the regression were: y=ax+b a=-0.662 b=30.418 r2=0.703921 r=-0.839

If f(x)= 3x+6 which of the following is the inverse of f(x)

Two researchers are attempting to create a new psychotherapy protocol that more reduces panic attacks. they believe that they have succeeded and are now in the clinical trial period of their protocol's development. they are working with several cohort groups, some of which have been through the new protocol, while others have done the standard protocol currently recommended. if these researchers are interested in evaluating the difference in the percentage of test subjects who successfully decreased their panic attacks in 2 months on the new protocol versus the percentage of test subjects who successfully decreased their panic attacks in 2 months with the traditional protocol, which of the following statistical tests would be most appropriate? a. analysis of variance (anova) b. correlation c. chi-square test d. paired t-test e. independent t-test