Question: The SAT test uses multiple choice test questions each with possible
The SAT test uses multiple-choice test questions each with possible answers of a, b, c, d, e, and each question has only one correct answer. We want to find the probability of getting exactly 10 correct answers for someone who makes random guesses for answers to a block of 25 questions. If we plan to use the methods of this section with a normal distribution used to approximate a binomial distribution, are the necessary requirements satisfied? Explain.
Answer to relevant QuestionsWith n = 13 and p = 0.4, find P(fewer than 3). If the requirements of np > 5 and nq > 5 are both satisfied, estimate the indicated probability by using the normal distribution as an approximation to the binomial ...Probability of exactly 19 voters use a normal approximation to find the probability of the indicated number of voters. In each case, assume that 100 eligible voters aged 18–24 are randomly selected. The most recent ...In a survey of 1002 people, 701 said that they voted in a recent presidential election (based on data from ICR Research Group). Voting records show that 61% of eligible voters actually did vote. Given that 61% of eligible ...A bone mineral density test is used to identify a bone disease. The result of a bone density test is commonly measured as a z score, and the population of z scores is normally distributed with a mean of 0 and a standard ...There is an 80% chance that a prospective employer will check the educational background of a job applicant (based on data from the Bureau of National Affairs, Inc.). Sixty-four job applications are randomly selected. a. ...
Post your question