Q14: A radar unit catches (photographs) over-speeding cars. It is estimated that 25% of the carstravelling on a highway over-speed:(a) How many cars should pass the radar unit, so that we are 92% sure that at least two of themare caught over-speeding?(b) Out of 200 cars passing by this radar unit, what is the probability that at least 50, but lessthan 80 cars are caught?

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Answered: Q14: A radar unit catches (photographs)…

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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Eighty percent of households in the United States have cable internet. A random sample of 10 households is selected. What is the probability that at least 7 of the households have cable internet? A. 0.8791 B. 0.6778 C. 0.3222 D. 0.1209 E. None of the above
In a certain town, 62% of the residents enjoy riding roller coasters. Alfred takes a sample of 75 residents from this town. What is the probability that fewer than 58% of the residents in the sample enjoy riding roller coasters? 0.238 0.433 0.714 0.762
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