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Which of the following must be true for all valid probability distributions of a discrete random variable? Select all that apply. All the possible outcomes must be positive. All of the possible outcomes must be whole numbers. All of the possible outcomes must be quantitative. All the probabilites must add up to 1. All the probabilities must be positive.

Which of the following must be true for all valid probability distributions of a discrete random variable? Select all that apply. All the possible outcomes must be positive. All of the possible outcomes must be whole numbers. All of the possible outcomes must be quantitative. All the probabilites must add up to 1. All the probabilities must be positive.

MATLAB: An Introduction with Applications
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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Which of the following must be true for all valid probability distributions of a discrete random variable? Select all that apply. All the possible outcomes must be positive. All of the possible outcomes must be whole numbers. All of the possible outcomes must be quantitative. All the probabilites must add up to 1. All the probabilities must be positive.
Transcribed Image Text:Which of the following must be true for all valid probability distributions of a discrete random variable? Select all that apply. All the possible outcomes must be positive. All of the possible outcomes must be whole numbers. All of the possible outcomes must be quantitative. All the probabilites must add up to 1. All the probabilities must be positive.
With a population of 2800 people, we randomly sample 191 people, without replacement. Is it reasonable to assume that the trials are sampled independently? Yes, because the sample size is greater than or equal to 5% of the population size. Yes, because the sample size is less than 5% of the population size. O No, because the sample size is less than 5% of the population size. O No, because the sample size is greater than or equal to 5% of the population size.
Transcribed Image Text:With a population of 2800 people, we randomly sample 191 people, without replacement. Is it reasonable to assume that the trials are sampled independently? Yes, because the sample size is greater than or equal to 5% of the population size. Yes, because the sample size is less than 5% of the population size. O No, because the sample size is less than 5% of the population size. O No, because the sample size is greater than or equal to 5% of the population size.
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