The following table gives the number of U.S. households within each of four income groups in which someone owns a smartphone. <30,000 75,000+ Income ($) Number of Owners (in thousands) 30,000-49,999 50,000-74,999 11,811 8,465 7,609 32,053 Let X denote the random variable that takes on the values 1, 2, 3, and 4, corresponding to the income groups <$30,000, $30,000-$49,999, $50,000-$74,999, and $75,000+, respectively. (a) Find the probability distribution associated with these data. (Round your answers to three decimal places.) Income ($) <30,000 30,000-49,999 50,000-74,999 75,000+ P(X = x) (b) If a smartphone owner in one of these households is chosen at random, what is the probability that his or her household income is between $30,000 and $74,999, inclusive? (Round your answer to three decimal places.)

The following table gives the number of U.S. households within each of four income groups in which someone owns a smartphone. <30,000 75,000+ Income ($) Number of Owners (in thousands) 30,000-49,999 50,000-74,999 11,811 8,465 7,609 32,053 Let X denote the random variable that takes on the values 1, 2, 3, and 4, corresponding to the income groups <$30,000, $30,000-$49,999, $50,000-$74,999, and $75,000+, respectively. (a) Find the probability distribution associated with these data. (Round your answers to three decimal places.) Income ($) <30,000 30,000-49,999 50,000-74,999 75,000+ P(X = x) (b) If a smartphone owner in one of these households is chosen at random, what is the probability that his or her household income is between $30,000 and $74,999, inclusive? (Round your answer to three decimal places.)

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...

See similar textbooks

Similar questions

Show that the probability of drawing a club at random from a standard deck of 52 playing cards is the same as the probability of drawing the ace of hearts at random from a set of four cards consisting of the aces of hearts, diamonds, clubs, and spades.
A manufacturer has determined that a machine averages one faulty unit for every 500 it produces. What is the probability that an order of 300 units will have one or more faulty units?
Find the probability of each event. Drawing 5 orange cubes from a bowl containing 5 orange cubes and 1 beige cubes
List the sample space of each experiment. Tossing three coins