What is the probability that there are no surface flaws in an auto’s interior? b. If 10 cars are sold to a rental company, what is the probability that none of the 10 cars has any surface flaws? c. If 10 cars are sold to a rental company, what is the probability that at most one car has any surface flaws?

What is the probability that there are no surface flaws in an auto’s interior? b. If 10 cars are sold to a rental company, what is the probability that none of the 10 cars has any surface flaws? c. If 10 cars are sold to a rental company, what is the probability that at most one car has any surface flaws?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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According to CTIA, 41% of all U.S. households are wireless-only households (no landline). Choose four households at random. A. What is the probability that at least two will be wireless-only? B. What is the probability that none of them will be wireless-only? C. What is the probability that least 1 of them will be wireless-only? D. Find the mean and standard deviation for the number of households that are wireless-only.
The quality control manager of Marilyn's biscuits is inspecting a batch of chocolate-chip biscuits that has just been baked. If the production process is in control, the mean number of chip parts per biscuit is 7.3. Complete parts (a) through (d). a. What is the probability that in any particular biscuit being inspected less than five chip parts will be found? The probability that any particular biscuit has less than five chip parts is (Round to four decimal places as needed.) b. What is the probability that in any particular biscuit being inspected exactly five chip parts will be found? The probability that any particular biscuit has exactly five chip parts is. (Round to four decimal places as needed.) c. What is the probability that in any particular biscuit being inspected five or more chip parts will be found? The probability that any particular biscuit has five or more chip parts is (Round to four decimal places as needed.) d. What is the probability that in any particular biscuit…
2. Suppose a store has a filling machine that fills 12 ounce bottles of juice. It is known that the amount of juice poured by this filling machine follows a normal distribution with a mean of 12.18 ounces and a standard deviation of 0.04 ounce. Find the probability that the bottle contains more than 12.23 ounces of juice.
The number of paint blisters produced by an automated plating process is Poisson distributed with a rate of 0.06 blisters per square meter. The process is about to be used to paint an item that measures 5 by 12m. what is the probability that the finished surface will have a. No blisters at all? b. Between five and eight blisters, inclusive? c. More than 2 blisters?
6) Assume that the heights of men are normally distributed with a mean of 68.0 inches and a standard deviation of 3.5 inches. If 100 men are randomly selected, find the probability that they have a mean height greater than 69 inches.
A county has been experiencing a mean of 33.8 motor vehicle deaths each year. Use the Poisson distribution to answer the following. a. Find the mean number of deaths per day. b. Find the probability that on a given day, there are more than 2 motor vehicle deaths. c. Is it unusual to have more than 2 motor vehicle deaths on the same day? Why or why not? a. The mean number of deaths per day is (Round to three decimal places as needed.)
4. TomTom, the producer of GPS devices, reported that the fastest drivers in the nation are in Mississippi. In Mississippi, interstate drivers average 70.1 miles per hour. Assume that the speed of cars traveling on Mississippi’s interstates follows the normal distribution with a standard deviation of 7.2 miles per hour. a. What is the probability that a randomly selected car on a Mississippi interstate is traveling 1. faster than 65 miles per hour? 2. slower than 72 miles per hour? 3. between 60 and 66 miles per hour? 4. between 78 and 85 miles per hour? b. Confirm the answers to part a with Excel. c. What average speed should I drive if I want to travel faster than 70% of the cars on the interstate?
Many consumers pay careful attention to stated nutritional contents on packaged foods when making purchases, so it is important that the information on packages be accurate. Suppose that a random sample of n = 12 frozen dinners of a certain type was selected and the calorie content of each one was determined. Below are the resulting observations, along with a boxplot and normal probability plot.
1.Calculate the probability of the height being less than 300, if the distribution of height was normal. Use the mean and standard deviations 2.Generate a graph to describe the distribution of height and insert it below. Would you think that the assumption that height was normal is accurate? Why or why not? Are speed and height associated? Why or why not? Generate a graph or table that supports.
The Brac University Basketball Team is looking for new players to join the team. The heights of all the try-out participants is known to follow a normal distribution with a mean of 168 cm and a standard deviation of 7 cm. To have a shot at joining the team, one must have a height between 159 cm and 175 cm; otherwise the team may end up imbalanced and incompatible. a. What is the probability that a randomly selected try-out participant will not satisfy the height requirements? Answer in exact fraction, or rounded to at least 4 decimal places. b. Determine the 80 percentile value for the height of the participants. Answer in exact fraction, or rounded to at least 2 decimal places. cm c. A point quard on the team should be among the top 14.87% of the accepted height range. So, what is the minimum height the coach should look for while picking a point guard? Answer in exact fraction, or rounded to at least 2 decimal places. cm
6. Shoe manufacturers must know the distribution of foot size of different age groups to decide demand for different sizes. It is found that foot size of men in Ontario is normally distributed with mean 10.8 inches and a standard deviation 1.4 inches. What is the probability that an Ontrio man will have a foot size less than 12 inches? 0.9022 0.8043 0.1957 0.7391