EXAMPLE 3Computers in a shipment of 100 units contain a portable hard drive,solid-state memory, or both, according to the following table:Portable Hard DriveSolid-state memory YesNoYes1580No41Two computers are selected randomly, with replacement, from thethe shipment. What is the probability mass function of the numberof computers in the sample having both Portable Hard Drive andSolid-state memory?

Answered: EXAMPLE 3 Computers in a shipment of…

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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9.1 A jar contains ten marbles, 8 of them red and 2 of them blue. Three marbles are selected at random, without replacement. What is the probability exactly one of the three marbles selected is blue?
1. (Witmer book – Page 116, Q: 3.6.12) Childhood lead poisoning is a public health concern in the United States. In a certain population, 1 child in 8 has a high blood lead level (defined as 30 µg/dl or more). In a randomly chosen group of 16 children from the population, what is the probability that a. None has high blood lead? b. 1 has high blood lead? c. 2 have high blood lead? d. 3 or more have high blood lead? Hint: Use parts a – c to help you answer.
3
Suppose that the proportions of blood phenotypes in a particular population are as follows: O A B AB 0.47 0.06 0.02 0.45 Assuming that the phenotypes of two randomly selected individuals are independent of one another, what is the probability that both phenotypes are O? (Enter your answer to four decimal places.) What is the probability that the phenotypes of two randomly selected individuals match? (Enter your answer to four decimal places.)
Part 1 of 6 Determine whether the following value is a continuous random variable, discrete random variable, or not a random variable. a. The number of light bulbs that burn out in the next year in a room with 13 bulbs b. The hair color of adults in the United States c. The number of pigeons in a country d. The time it takes for a light bulb to burn out e. The number of free-throw attempts before the first shot is missed f. The number of people in a restaurant that has a capacity of 150 ..... a. Is the number of light bulbs that burn out in the next year in a room with 13 bulbs a discrete random variable, continuous random variable, or not a O A. It is a discrete random variable. O B. It is a continuous random variable. O C. It is not a random variable.
25. Given the following data for an imaginary superhero universe: Flying Telepathy Super Strength Female 27 99 39 Male 27 95 57 Distribution of Super Power by Gender What is the empirical probability that a randomly selected superhero will have super strength? Answer in decimal form. Round to 3 decimal places as
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QUESTION: An airfreight company has Various classes of freight. In one of these classes the average weight of packages is 10kg and the variance of the weight distribution is 9kg?. Assuming that the package weights are independent (it is not the case that a single company is sending a large number of identical packages, for instance), estimate the probability that 100 packages will have total weight more than 1020kg.

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