Direction: Write your answer on a separate sheet of paper.Answer the following in 2-3 sentences only.1. How do you describe a discrete random variable?202. How do you describe a continuous random variable?3. Give three examples of discrete random variable.4. Give three examples of continuous random variable.5. What do you notice about the probability values of random variable in eachprobability distribution?6. What is the sum of the probabilities of a random variable?7. Why should the sum of the probabilities in a probability distribution is alwaysequal to 1?8. What is the shape of most probability distributions? Why do you think so?

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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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X: 61,66,68,72,75,33,29,51,56, 90,100, 75,98 For this sample; 23. S2 =? 24. median =? 25. A dice is tossed. The success : The surface point is 7. Write the X random variable with its notation and probability.
A random variable is normally distributed with a mean of µ = 50 and a standard deviation of o = 5. a. Which of the following graphs accurately represents the probability density function? A.
You are doing research on balance and fitness. To complete this research you will need a watch with a second hand. Identify a random sample of n = 12 men and n = 8 women. You must answer this question: How do you establish that this sample is truly random? Have each subject perform the following task: Have the subjects stand with their hands at their side, raise one knee, cross their ankle over the other knee, squat and bring their hands palms together in front of their chest. Time the subject until they put their foot back down on the floor. b)Ask the following questions: i)How many days per week do they exercise? ii) What is their favorite exercise? You will analyze your data and compute the following statistics for each group: 1) The Mean and standard deviation of the number of seconds the subject stayed balanced 2) The Median number of days per week exercised 3) The Mode of the favorite exercise 4) The 90% confidence interval of the mean 5) Construct a complete…
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4. Bert can play for 3 hours a day. Ninety nine percent of the time, he plays for 3 hours. Fifty of the time he plays for 1.5 hours. Thirty three percent of the time he plays for 1 hour. One percent of the time he won't play at all. What will be the random variable?
Which of the following is not a discrete random variable? A.The number of heads when we toss two coins. B.The number of accidents per week. C.Amount of cooking oil sold in a departmental store in a day. D.All of the choices.
13) Approximately 59.4% of adults have added bleach to their laundry. Assume six adults are randomly selected. Find the probability that at most one adult have added bleach to their laundry. Round the answer to four decimals digits.
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What is the answer for Heads and Tails?
3 dices are rolled together. If X is the random variable for the sum of the results of the 3 dices, how many possible values does the random variable X contain?

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Direction: Write your answer on a separate sheet of paper. Answer the following in 2-3 sentences only. 1. How do you describe a discrete random variable? 20 2. How do you describe a continuous random variable? 3. Give three examples of discrete random variable.