Type in 9, 0.62, 4) and then press enter. How you enter this looks different in each calculator. The probability of success is 0.62 and we are finding P(X = 4). In this problem, there are 9 people selected (n = number of trials = 9). Scroll down to binompdf near the bottom of the list. P(X = 4) Step 1: Go to the distributions menu on the calculator and select binompdf. Let X represent the number of attendees that have attended a similar conference in the last year. Find the probability that exactly 4 have attended a similar conference in the last year. Suppose that 9 attendees are randomly selected. The binompdf function on your calculator is for finding the probability of exactly some number of successes.Ī survey determines that 62% of the attendees at a conference have attended a similar conference in the last year.
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