First, decide whether the distribution is a discrete probability distribution, then select the reason for making this decision.Decide○ Yes NoReason○ Since the probabilities lie inclusively between 0 and 1 and the sum of the probabilities is equal to 1.○ Since at least one of the probability values is greater than 1 or less than 0.Since the sum of the probabilities is not equal to 1.○ Since the sum of the probabilities is equal to 1.○ Since the probabilities lie inclusively between 0 and 1. Determine whether or not the distribution is a discrete probability distribution and select the reason why or why not.x-436P(X = x)0.350.62 0.36

Answered: Image /qna-images/answer/bf197edf-df7d-496a-87dc-7bd9f432021c.jpg

Answered: First, decide whether the distribution…

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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You work at a mechanic shop. On average, 10 cars come into your shop each day. Assuming a poisson distribution, what is the probability 4 cars come into the shop? Round to 4 decimal points.
Assume that the traffic to the web site of Smiley's People, Inc., which sells customized T-shirts, follows a normal distribution, with a mean of 4.48 million visitors per day and a standard deviation of 900,000 visitors per day. (a) What is the probability that the web site has fewer than 5 million visitors in a single day? If needed, round your answer to four decimal digits, (b) What is the probability that the web site has 3 million or more visitors in a single day? If needed, round your answer to four decimal digits. (e) What is the probability that the web site has between 3 million and 4 million visitors in a single day? If needed, round your answer to four decimal digits. (d) Assume that 85% of the time, the Smiley's People web servers can handle the daily web traffic volume without purchasing additional server capacity. What is the amount of we traffic that will require Smiley's People to purchase additional server capacity? If needed, round your answer to two decimal digits.…
Assume that the traffic to the web site of Smiley’s People, Inc., which sells customized T-shirts, follows a normal distribution, with a mean of 4.48 million visitors per day and a standard deviation of 800,000 visitors per day. (a) What is the probability that the web site has fewer than 5 million visitors in a single day? If needed, round your answer to four decimal digits. (b) What is the probability that the web site has 3 million or more visitors in a single day? If needed, round your answer to four decimal digits. (c) What is the probability that the web site has between 3 million and 4 million visitors in a single day? If needed, round your answer to four decimal digits. (d) Assume that 85% of the time, the Smiley’s People web servers can handle the daily web traffic volume without purchasing additional server capacity. What is the amount of web traffic that will require Smiley’s People to purchase additional server capacity? If needed, round your…
Question Two a) The table below shows the probability distribution of the discrete random variable X. 2 3 4 5 7 P(X=x) 2p 2p 3p i. Find the value of p from the table above. Calculate the probability that at X is at least 5. Calculate the mean of the distribution. ii. 111.
A store sells from 0 to 12 computers per day. Is the amount of daily computer sales a discrete or continuous random variable?
Using the standard normal distribution table, compute the following probabilities P(-1.5 ≤ Z ≤ 1.8) is:
Suppose commute times in a large city are normally distributed and that 65.20% of commuters in this city take more than 22 minutes to commute one-way. If the standard deviation of such commutes is 6.5 minutes, what is the mean commute?
Beer bottles are filled so that they contain an average of 330 ml of beer in each bottle. The amount of beer in a bottle is normally distributed with a standard deviation of 2.9 ml. 21 What is the probability that a randomly selected 6-pack of beer will have a mean amount in 6 bottles less than 328ml? a 0.0292 b 0.0365 c 0.0456 d 0.0570
You may need to use the appropriate appendix table or technology to answer this question. Shoppers enter a mall at an average of 360 per hour. (Round your answers to four decimal places.) (a) What is the probability that exactly 15 shoppers will enter the mall between noon and 12:05 p.m.? 0.0010 (b) What is the probability that at least 70 shoppers will enter the mall between 5:00 and 5:10 p.m.? 0.0985 X
A pizza delivery service delivers to a campus dormitory. Delivery times follow a normal distribution with a mean of 20 minutes and a standard deviation of 4 minutes.a. What is the probability that a delivery will take between 15 and 25 minutes?b. The service does not charge for the pizza if delivery takes more than 30 minutes. What is the probability of getting a free pizza from a single order?c. During final exams, a student plans to order pizza five consecutive evenings. Assume that these delivery times are independent of each other. What is the probability that the student will get at least one free pizza?d. Find the shortest range of times that includes 40% of all deliveries from this service.e. For a single delivery, state in which of the following ranges (expressed in minutes) the delivery time is most likely to lie.18-20, 19-21, 20-22, 21-23f. For a single delivery, state in which of the following ranges (expressed in minutes) the delivery time is least likely to lie.18-20,…
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