Local parents and their children were invited to the grand opening of a daycare center. Each of the 135 attendees got to spin a wheel to win a prize. The tablebelow summarizes the data on the attendees and their prizes.Pencil Cup MagnetParent 19 40 12Child15 472Suppose an attendee from the grand opening is chosen at random.Answer each part. Do not round intermediate computations, and round your answers to the nearest hundredth.(If necessary, consult a list of formulas.)(a) What is the probability that the attendee won a pencil?0(b) What is the probability that the attendee is a child, given that the attendee won a cup?0XS

pencil cup magnet total parent 19 40 12 71 child 15 47 2 64 34 87 14 135

Answered: Local parents and their children were…

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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People often match their behavior to their social environment. One study of this idea first established that the type of music most preferred by black college students is R&B and that white college students' most preferred music is rock. Will students hosting a small group of other students choose music that matches the makeup of the people attending? Assign 9090 black business students at random to three equal‑sized groups. Do the same for 9696 white students. Each student sees a picture of the people he or she will host. Group 1 sees six blacks, Group 2 sees three whites and three blacks, and Group 3 sees six whites. Ask how likely the host is to play the type of music preferred by the other race. Use ANOVA to compare the three groups to see whether the racial mix of the gathering affects the choice of music.
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