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A First Course in Probability (10th Edition)

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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A table is ruled with equidistant parallel lines a distance /3 cm apart.
A needle of length 2 cm is randomly thrown on the table.
What is the probability that the needle will intersect (at least) one of the lines?
Ans:
12. Fill in the blanks
Two points are randomly selected on the unit interval (0, 1] so as to be on opposite sides of the midpoint , with one point in [0, ] and the other in
}, 1).
What is the probability that the distance between the two points is greater than ?
Ans:

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Q7
A random point is chosen inside a triangle with height h and base lenght b. what is the expected value of the perpendicular distance of the point to the base?
Which proportion of a normal distribution is located in the tail above z= +1.50? A.) 0.9332 B.) 0.0668 C.) 0.4332 D.) 0.4501
What is the area of -0.45 in the standard normal distribution? A.) 1 B.) 0.5 C.) 0.6736 D.) 0.3264 E.)0 F.) None of the above, as it depends on the situation
A game at the state fair has a circular target with a radius of 12 centimeters on a square board measuring 30 centimeters a side, as shown. Players win if they are able to throw a dart and hit the circular area only. r = 12 cm a. What is the probability that a dart will hit the circular region? 30 сm b. What is the probability that a dart will hit the square region that is outside the circle? c. In order for a player to win a prize, that player must hit the circular region with 3 consecutive darts (darts removed after each toss). What is the probability of a player winning a prize? Round answers to 4 decimal places a.) b.)
Fill in the rest of the joint distribution so that X and Y are independent. There are two possible answers: Y 0 1 X=0 1 ? 2/9 2/9
<p>A newspaper reports that the governor's approval rating stands at 60%. The article adds that the poll is based on a random sample of 2,547 adults and has a margin of error of 2.5%</p><p>a) 90%</p><p>b) 95%</p><p>c) 99%</p><p>d) 98%</p><p>e) Not enough information given</p>

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