Samantha, Brooklyn, and Mary went to Bonnaroo music festival where they each attended various concerts.

• Samantha only went to rock concerts where the sound level was normally distributed between 113

and 117 decibels.

• Brooklyn went to 4 concerts with Samantha and also went to 5 folk concerts where the sound level

was between 95 and 97 decibels.

• Mary got sick, so she only attended 2 shows - one rock concert and one folk concert.

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

Aconcession manager at yankee stadium wants to know how temperature affects beer sales. she took a sample of 10 games and recorded the number of beers sold and the temperature in the middle of the game. temperature 80 68 78 79 87 74 86 92 77 84 number of beers 20533 1439 13829 21286 30985 17187 30240 87596 9610 28742 a. draw a scatter plot of the data. b. the manager estimates the regression equation to be: numberofbeers = −100, 678 + 1, 513 ∗ temperature draw this on your scatter plot. c. for one of the estimated points, indicate the residual with ei . d. for that same point, indicate what part of the variation is explained by the model with ˆyi − y¯.

Consider the quadratic equation ax^2 +bx+5=0 , where a,b, and c are rational numbers and the quadratic has two distinct zeros.if one zero is irrational , the other zero is