Gwez Amoung a group of five fople Seleckd at randam from a cerlain pofulation it is Known that the probability that no onewill be 36 or over Oo Ol024- s what is the probability that exaltly one peo in the group is under 35? oneferion 1) Calculate the mean and vanance ofthe frobability distribution of the number of. person Over 36 and compure to the formla values for this type of distribution. ii ) Given three such groups whatis the probab that two owt of tree thrce more than two percons 35or OVer? groups. have no

Gwez Amoung a group of five fople Seleckd at randam from a cerlain pofulation it is Known that the probability that no onewill be 36 or over Oo Ol024- s what is the probability that exaltly one peo in the group is under 35? oneferion 1) Calculate the mean and vanance ofthe frobability distribution of the number of. person Over 36 and compure to the formla values for this type of distribution. ii ) Given three such groups whatis the probab that two owt of tree thrce more than two percons 35or OVer? groups. have no

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Description: at random from a cerlain pofulation it isKnown that the probability thatno onewillbe 36 or over Oo O1024s what is the probability that exaltly one fenin the group is under 35?11) Calculate the mean and vanance ofthefrobability distribution of the nu

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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54. Suppose the probability distribution for X = number of jobs held during the past year for students at a school is as given in the following table. No. of Jobs 1 2 ul 3 o 4 Probability ??? 0.37 0.29 0.15 0.05 (a) Find the probability that a randomly selected student did not hold a job in the past year. (b) Find the probability that a randomly selected student held two or fewer jobs in the past year. (c) Find the probability that a randomly selected student held at least one job during the past year. (d) Find the expected number of jobs that students held within the past year.
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