Two friends Kirsty and Bridget, independently applied for different jobs. The chances that Kirsty is successful is 0.8 and the chances that Bridget is successful is 0.75. (a) If X denotes the number of successful applications between the two friends, find the probability distribution of X. (b) Hence find the probability that i. both are successful ii. that if one is successful, it is Kirsty.
Two friends Kirsty and Bridget, independently applied for different jobs. The chances that Kirsty is successful is 0.8 and the chances that Bridget is successful is 0.75. (a) If X denotes the number of successful applications between the two friends, find the probability distribution of X. (b) Hence find the probability that i. both are successful ii. that if one is successful, it is Kirsty.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
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Two friends Kirsty and Bridget, independently applied for different jobs.
The chances that Kirsty is successful is 0.8 and the chances that Bridget is successful is 0.75.
(a) If X denotes the number of successful applications between the two friends, find the
(b) Hence find the probability that i. both are successful
ii. that if one is successful, it is Kirsty.
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