Daily sales records for a computer manufacturing firm show that it will sell 0, 1, or 2 mainframe computer systems with probabilities as listed:
Daily sales records for a computer manufacturing firm show that it will sell 0, 1, or 2 mainframe computer systems with probabilities as listed:
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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What is the answer of A & B
Transcribed Image Text:Daily sales records for a computer manufacturing
firm show that it will sell 0, 1, or 2 mainframe
computer systems with probabilities as listed:
Number of sales
0.
1
Probability
0.7
0.2
0.1
a. Find the probability distribution for X,
the number of sales in a two-day period,
assuming that sales are independent from
day to day.
b. Find the probability that at least one sale is
made in the two-day period.
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