12x-2y=-10 y=6x+ 5
Is it a solution?
Х
?
(x, y)
Yes
No
(-4, -19)
(0,5)
Bolololo
(-1,8)
Olo
(2, -3)

People end up tossing 12% of what they buy at the grocery store. assume this is the true population proportion and that you plan to take a sample survey of 540 grocery shoppers to further investigate their behavior. a. calculate the mean and the standard error for the sample proportion p. b. describe the sampling distribution of p in part a. draw a graph of this probability distribution with its mean and standard deviation. what is the probability that your survey will provide a sample proportion more than 15%? c. d. population proportion? what is the probability that your survey will provide a sample proportion within + 0.03 of the