2.4. Among employees of a certain frm, 70% know Java, 60% know Python, and 50% know both languages. What portion of programmers (a) does not know Python? (b) does not know Python and does not know Java? (c) knows Java but not Python? (d) knows Python but not Java? (e) If someone knows Python, what is the probability that he/she knows Java too? (£) If someone knowrs Java, what is the probability that he/she knows Python too?

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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2.4. Among employees of a certain frm, 70% know Java, 60% know Python, and 50% know both languages. What portion of
programmers
(a) does not know Python?
(b) does not know Python and does not know Java?
(c) knows Java but not Python?
(d) knows Python but not Java?
(e) If someone knows Python, what is the probability that he/she knows Java too?
(£) If someone knows Java, what is the probability that he/she knows Python too?
Transcribed Image Text:4 2.4. Among employees of a certain frm, 70% know Java, 60% know Python, and 50% know both languages. What portion of programmers (a) does not know Python? (b) does not know Python and does not know Java? (c) knows Java but not Python? (d) knows Python but not Java? (e) If someone knows Python, what is the probability that he/she knows Java too? (£) If someone knows Java, what is the probability that he/she knows Python too?
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