b. Calculate the probability of the indicated event. P(x) = Round to 3 significant digits = NaN c. Determine the expected value and variance of the random variable. E (X) = 0

In a video game, a specific attack succeeds at a rate of 20% and every try is independent. Determine the probability that the first attack lands on the 3rd try.

A pizza parlour makes an average of 5.75 pizzas every 5 minutes during the dinner rush. What is the probability that the restaurant will make at least one pizza per minute during the dinner rush? Analyze the given scenario and complete the following: a. Determine which probability distribution should be used to model the scenario. Hypergeometric Geometric E Poisson SAMSUNG SUBMIT QUESTION SAVE PROGRESS SUBMIT

Suppose we played roulette x5 times (where x = 3 is the last digit of your student ID) and each time we bet on the number 17. In each game, xthe probability of winning is 1/37. Calculate the probability P(X = z), where z is the second-to-last digit of your student ID (in this case, z = 5). Draw the probability distribution function graph for the given scenario. Also, calculate the probability of winning less than 5 timesDo this task in R commander.

Suppose the average tread-life of a certain brand of tire is 45,000 miles and that this mileage follows the exponential probability distribution. What is the probability that a randomly selected tire will have a tread-life between 30,000 and 50,000 miles?

In an election, suppose that 35% of voters support a school levy increase. If we poll 220 of these voters at random, the probability distribution for the proportion of the polled voters that support a school levy increase can be modeled by the normal distibution pictured below. Complete the boxes accurate to two decimal places .

40% of consumers believe that cash will be obsolete in the next 20 years. Assume that 6 consumers are randomly selected. Find the probability that fewer than 3 of the selected consumers believe that cash will be obsolete in the next 20 years. The probability is (Round to three decimal places as needed.) ...