1.)there are 35 marbles in a bag: 9 blue marbles, 8 marbles, 4 red marbles, 4 red marbles, 8 white marbles, & 6 yellow marbles. find p(red). write the probability as a fraction in simplest form, a decimal, & a percent.
a.)4/31, 0.129, 12.9%
b.)4/35, 0.114, 11.4%
c.)1/7, 0.143, 14.3%
d.)3/35, 0.086, 8.6%

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