A Gallup Poll showed that 30% of Americans are satisfied with the way things are going in the United States (Gallup website, September 12, 2012). Suppose a sample of 20 Ameri- cans is selected as part of a study of the state of the nation.
a. Compute the probability that exactly 4 of the 20 Americans surveyed are satisfied with the way things are going in the United States.
b. Compute the probability that at least 2 of the Americans surveyed are satisfied with satisfied with the way things are going in the United States.
c. For the sample of 20 Americans, compute the expected number of Americans who are number of Americans who are satisfied with the way things are going in the United States.
d. For the sample of 20 Americans, compute the variance and standard deviation of the the way things are going in the United States.

step-by-step explanation:

i am not sure sorry : c

the most boring ever written

step-by-step explanation:

i am writing something. yes, i plan to make it the most boring thing ever written. i go to the store. a car is parked. many cars are parked or moving. some are blue. some are tan. they have windows. in the store, there are items for sale. these include such things as soap, detergent, magazines, and lettuce. you can enhance your life with these products. soap can be used for bathing, be it in a bathtub or in a shower. apply the soap to your body and rinse. detergent is used to wash clothes. place your dirty clothes into a washing machine and add some detergent as directed on the box. select the appropriate settings on your washing machine and you should be ready to begin. magazines are stapled reading material made with glossy paper, and they cover a wide variety of topics, ranging from news and politics to business and stock market information. some magazines are concerned with more recreational topics, like sports card collecting or different kinds of hairstyles. lettuce is a vegetable.

98%

step-by-step explanation: