4. When a polling organization randomly calls households for a survey, there is a 0.10 probability the are able to obtain a response. If the organization randomly calls 10 households, what is the probabili they are able to obtain a response from at least 1 household? 0.0000

assume that when adults with smart phones are randomly selected, 54% use them in meetings or classes. If I have a dark smart phone users are randomly selected, find the probability that exactly 3 of them use their smart phones in meetings or classes.

8. It is reported that 77% of workers aged 16 and over drive to work alone. Choose 4 workers at random. Find the probability that: All drive to work alone a. b. One of them drives to work alone. C. More than one of them drives to work alone

7.) The Pew Internet and American Life Project reported in 2004 that 55% of current music downloaders say they are using paid services. Consider a random sample of 18 music downloaders.a.) Find the probability that the sample contains 15 music downloaders who are usingpaid services using the formula.b.) Find the probability that the sample contains 10 or fewer music downloaders who areusing paid services using the calculator.c.) Find the probability that the sample contains 9 or more music downloaders who areusing paid services using the calculator.d.) Find the probability that the sample contains between 8 and 15, inclusive, musicdownloaders who are using paid services using the calculator.e.) Find the mean number of music downloaders who are using paid services.f.) Find the standard deviation of music downloaders who are using paid services.