18. A Mexican tfood truck knows from past data that 60% of customers order the beef taco instead of the chicken taco. Suppose there are 10 customers heading toward the truck. X is defined as the number of customers ordering a beef taco. a. What is the probability that 9 or more customers will order a beef taco? b. What is the probability that fewer than 9 customers will order a beef taco? c. What is the probability that exactly 3 customers will order a beef taco? d. What is the expected value and the standard deviation of the binomial random variable?

18. A Mexican tfood truck knows from past data that 60% of customers order the beef taco instead of the chicken taco. Suppose there are 10 customers heading toward the truck. X is defined as the number of customers ordering a beef taco. a. What is the probability that 9 or more customers will order a beef taco? b. What is the probability that fewer than 9 customers will order a beef taco? c. What is the probability that exactly 3 customers will order a beef taco? d. What is the expected value and the standard deviation of the binomial random variable?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.8: Probabilities Of Disjoint And Overlapping Events

Problem 2C

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