A bag contains 4 Milky Way bars and 5 Snickers bars. Jerod picks a bar at random from the bag and replaces it back in the bag. He mixes the bars in the bag and then picks another bar at random. Construct a probability tree and calculate the probability that Je
A bag contains 4 Milky Way bars and 5 Snickers bars. Jerod picks a bar at random from the bag and replaces it back in the bag. He mixes the bars in the bag and then picks another bar at random. Construct a probability tree and calculate the probability that Je
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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Question
A bag contains 4 Milky Way bars and 5 Snickers bars. Jerod picks a bar at random from the bag and replaces it back in the bag. He mixes the bars in the bag and then picks another bar at random. Construct a probability tree and calculate the probability that Jerod picks a Milky Way bar in his second draw.
Expert Solution
Step 1
Given information:
A bag contains 4 Milky Way bars and 5 snickers bars.
Total number of bars is 4+5=9.
A bar is selected from the bag with replacement.
That is, the selection of bars are independent.
P(milky way bar)=4/9
P(snicker)=5/9
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