A box contains 500 envelopes of which 75 contain P1000 in cash, 150 contain P500, and 275 contain 100. An envelope may be purchased for P200. Find the probability that the first envelope purchased contains less than P1000.

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 box contains 500 envelopes of which 75 contain P1000 in cash, 150
contain P500, and 275 contain 100. An envelope may be purchased for
P200. Find the probability that the first envelope purchased contains less
than P1000.
Transcribed Image Text:A box contains 500 envelopes of which 75 contain P1000 in cash, 150 contain P500, and 275 contain 100. An envelope may be purchased for P200. Find the probability that the first envelope purchased contains less than P1000.
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