According to a survey in a country, 18% of adults do not own a credit card. Suppose a simple random sample of 900 adults is obtained. Complete parts (a) through (d) below.(b) What is the probability that in a random sample of 900 adults, more than 21% do not own a credit card?The probability is 0.0104.(Round to four decimal places as needed.)Interpret this probability.If 100 different random samples of 900 adults were obtained, one would expectto result in more than 21% not owning a credit card.(Round to the nearest integer as needed.)

Given information: From the part b, the probability that in a random sample of 900 adults, more than…

Answered: According to a survey in a country, 18%…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A weighted coin has a 0.664 probability of landing on heads. If you toss the coin 28 times, what is the probability of getting heads exactly 18 times? (Round your answer to 3 decimal places if necessary.)
ssume that 33.2% of people have sleepwalked. Assume that in a random sample of 1454 adults, 523 have sleepwalked. a. Assuming that the rate of 33.2% is correct, find the probability that 523 or more of the 1454 adults have sleepwalked. b. Is that result of 523 or more significantly high?
11.6% of the population is 65 or older. Find the probability that the following number of persons selected at random from 50 people are 65 or older. The probability that at least 3 are 65 or older is (Round to three decimal places as needed.)
A standard pair of six-sided dice is rolled. What is the probability of rolling a sum less than 44? Express your answer as a fraction or a decimal number rounded to four decimal places.
A poll reported that 63% of adults were satisfied with the job the major airlines were doing. Suppose 25 adults are selected at random and the number who are satisfied is recorded. Complete parts (a) through (e) below. (c) Find and interpret the probability that at least 20 of them are satisfied with the airlines. The probability that at least 20 adults are satisfied with the airlines is (Round to four decimal places as needed.) Interpret the probability. Select the correct choice below and fill in the answer box within your choice. (Round to the nearest integer as needed.) OA. In 100 randomly sampled surveys of 25 adults, 20 or more of the 25 adults would be expected to be satisfied with the airlines in about B. In 100 randomly sampled surveys of 25 adults, less than 20 of the 25 adults would be expected to be satisfied with the airlines in about OC. In 100 randomly sampled surveys of 25 adults, exactly 20 out of the 25 adults would be expected to be satisfied with the airlines in…
The probability of an accident among 200 insured in the same age group in an insurance company is p = 0.001. Accordingly, which of the following is the probability that no individual has an accident?
It has been determined that the probability of a hurricane occuring on a certain day in a certain area is 4%. What is the probability that a hurricane does not occur on that day?
Assume that when adults with smartphones are randomly selected, 45% use them in meetings or classes. If 10 adult smartphone users are randomly selected, find the probability that at least 3 of them use their smartphones in meetings or classes. Question content area bottom Part 1 The probability is enter your response here. (Round to four decimal places as needed.)
Vehicles pass through a junction on a busy road at an average rate of 200 per hour. Determine the following: 1. The probability that less than 50 vehicles will pass through the junction in the next 30 minutes. 2. The probability that more than 200 will pass through the junction in the next 30 minutes.
The accompanying table shows the results of a survey in which 250 male and 250 female workers ages 25 to 64 were asked if they contribute to a retirement savings plan at work. Complete parts (a) and (b) below. Click the icon to view the survey results. (a) Find the probability that a randomly selected worker contributes to a retirement savings plan at work, given that the worker is male. The probability that a randomly selected worker contributes to a retirement savings plan at work, given that the worker is male, is (Round to three decimal places as needed.) (b) Find the probability that a randomly selected worker is female, given that the worker contributes to a retirement savings plan at work. The probability that a randomly selected worker is female, given that the worker contributes to a retirement savings plan at work, is (Round to three decimal places as needed.)
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.) ...

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