3. x<-10 F(x)= 0.25 -10 sx< 30 0.75 30
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Solve the following Discrete Probability Distribution.
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- This question is similar to Exercise 7 on page 227 and Exercises 15 and 16 on page 231 of your textbook. Consider the following discrete probability distribution. X P(x) 1 0.1 2 0.4 3 0.3 5 0.1 8 0.1A diagnostic test for disease X correctly identifies the disease 89% of the time. False positives occur 8%. It is estimated that 3.04% of the population suffers from disease X. Suppose the test is applied to a random individual from the population. Compute the following probabilities. (It may help to draw a probability tree.) The percentage chance that the test will be positive = % The probability that, given a positive result, the person has disease X =6. Please answer the following probability question.
- Assume that 12 jurors are randomly selected from a population in which 76% of the people are Mexican- Americans. Refer to the probability distribution table below and find the indicated probabilities. P(a) 0+ 1 0+ 0+ 0.0003 4. 0.0018 0.0092 6. 0.034 7 0.0924 8 0.1828 9. 0.2573 10 0.2444 11 0.1407 12 0.0371 Find the probability of exactly 5 Mexican-Americans among 12 jurors. P(x = 5) = 0.0092 Find the probability of 5 or fewer Mexican-Americans among 12 jurors. P(x < 5) = 3205 Does 5 Mexican-Americans among 12 jurors suggest that the selection process discriminates against Mexican-Americans? yes O no Question Help: O Message instructor Submit Question 12 MAR tv 19 MacBook Air 11 F4 F5 F7Find the value of z for the following probability statement P(-1.9Consider the following discrete probability distribution. x 33 34 35 36 37 38 39 40 P(x) 0.02 0.06 0.10 0.20 0.24 0.26 0.10 0.02 (a) Find the probability that the random variable x is at most 38. Don't round. (b) Find the probability that the random variable x is at least 35. Don't round.In an election, suppose that 55% of voters support a new tax on fast food. If we poll 123 of these voters at random, the probability distribution for the proportion of the polled voters that support a new tax on fast food can be modeled by the normal distibution pictured below. Complete the boxes accurate to two decimal places.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 .2. Please answer the following probability question.Given the composite probability function of a random variable x and y, which of the following is false?According to a recent Gallup Poll, 75% of Americans report that they are better off financially today than they were a year ago. Let p be the proportion of people in a random sample of 230 Americans that say that they are better off financially today than they were a year ago. Determine the following probabilities. Round solutions to four decimal places, if necessary . Find the probability that in a random sample of 230 Americans, less than 81% say they are better off financially today than they were a year ago. P( hat p <0.81)=; = Box Find the probability that in a random sample of 230 Americans, between 71% and 75% say they are better off financially today than they were a year ago . P(0.71< hat p <0.75)=Historical records of managers of a fast food suggest that they have an average of 3 customers per hour who pay using credit card and that this average is the same for every hour of operation of the fast food. It is of interest to the managers to compute certain probabilities given these data. 1.Which of the following discrete probability distribution must managers use? 2. What is the probability that there will be exactly 4 customers paying with credit card in the next hour?SEE MORE QUESTIONS
