Choose the letter of the correct answer.Answer number 1,2 and 3. 1. Which of the following random variable would you expect to be discrete?A. The weights of mechanically produced itemsB. The number of children at a Christmas partyC. The times, in seconds, for a 100m sprintD. The lifetimes of resistors2. x is a random variable, with mean u and standard deviation o . Thestandardized form of x is z= (X – H)/0. What are the mean and standarddeviation, respectively of z?А. О, 1В. 1, 0с. 2, 0D. 2, 13. A distribution of data has a mean of 15 and a standard deviation of 2. Howmany standard deviations away from the mean is a value of 13?A. One standard deviation above the meanB. Two standard deviation above the meanC. One standard deviation below the meanD. Two standard deviation below the mean

NOTE : As per Bartleby guidelines for more than one question asked only one is to be answered please…

1. Which of the following random variable would you expect to be discrete? A. The weights of mechanically produced items B. The number of children at a Christmas party C. The times, in seconds, for a 100m sprint D. The lifetimes of resistors 2. x is a random variable, with mean u and standard deviation a. The standardized form of x is z (X- 4)/a. What are the mean and standard deviation, respectively of z? A. 0, 1 В. 1,0 с. 2, 0 D. 2, 1 3. A distribution of data has a mean of 15 and a standard deviation of 2. How many standard deviations away from the mean is a value of 13? A. One standard deviation above the mean B. Two standard deviation above the mean C. One standard deviation below the mean D. Two standard deviation below the mean

1. Which of the following random variable would you expect to be discrete? A. The weights of mechanically produced items B. The number of children at a Christmas party C. The times, in seconds, for a 100m sprint D. The lifetimes of resistors 2. x is a random variable, with mean u and standard deviation a. The standardized form of x is z (X- 4)/a. What are the mean and standard deviation, respectively of z? A. 0, 1 В. 1,0 с. 2, 0 D. 2, 1 3. A distribution of data has a mean of 15 and a standard deviation of 2. How many standard deviations away from the mean is a value of 13? A. One standard deviation above the mean B. Two standard deviation above the mean C. One standard deviation below the mean D. Two standard deviation below the mean

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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