If a student estimated that the probability of correctly answering each question in a multiple choice question is 80%, use the binomial tables to determine the probability of earning at least a 70% grade on a 20 question exam.
Answer to relevant QuestionsA recent survey taken by Adecco of 1,047 employees found that 28% of them would lay off their bosses if they could. Answer the following questions based on a random sample of 10 employees: a. What is the probability that ...Consider the following discrete probability distribution: Outcome Probability 1 ......... 0.18 2 ......... 0.25 3 ......... 0.35 4 ......... 0.22 a. Calculate the mean of this distribution. b. Calculate the standard ...Sara is a salesperson for Camera’s Etc. which is a retailer for highend digital cameras. Historically, Sara has averaged selling 2.1 extended warranties per day for cameras that she sells. Assume the number of camera ...An urn contains six blue balls and eight yellow balls. If four balls are selected randomly without being replaced, what is the probability that of the balls selected, three of them will be blue and one of them will be ...I am currently teaching two statistics classes, one at 8: 00 a. m. and the other at 10: 00 a. m. The following table summarizes my attendance records by showing the probability of the number of absent students per class: a. ...
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