# Question

Find the mean and standard deviation for each of the following binomial random variables in parts a–c:

a. The number of sixes seen in 50 rolls of a die

b. The number of defective televisions in a shipment of 125 (The manufacturer claimed that 98% of the sets were operative.)

c. The number of operative televisions in a shipment of 125 (The manufacturer claimed that 98% of the sets were operative.)

d. How are parts b and c related? Explain.

a. The number of sixes seen in 50 rolls of a die

b. The number of defective televisions in a shipment of 125 (The manufacturer claimed that 98% of the sets were operative.)

c. The number of operative televisions in a shipment of 125 (The manufacturer claimed that 98% of the sets were operative.)

d. How are parts b and c related? Explain.

## Answer to relevant Questions

According to United Mileage Plus Visa (November 22, 2004), 41% of passengers say they “put on the earphones” to avoid being bothered by their seatmates during flights. To show how important, or not important, the ...Use a computer to find the cumulative probabilities for all possible x values for a binomial experiment where n _ 45 and p _ 0.125. a. Explain why there are so many 1.000s listed. b. Explain what is represented by each ...A binomial random variable x is based on 15 trials with the probability of success equal to 0.4. Find the probability that this variable will take on a value more than 2 standard deviations above the mean. a. Explain why the IQ score is a continuous variable. b. What are the mean and the standard deviation for the distribution of: IQ scores? SAT scores? standard scores? c. Express, algebraically or as an equation, the ...According to Chebyshev’s theorem, at least how much area is there under the standard normal distribution between z = -2 and z = +2? What is the actual area under the standard normal distribution between z = -2 and z = +2?Post your question

0