=+43. Closing sales. A salesman normally makes a sale (closes) on 80% of his presentations. Assuming the

Question:

=+43. Closing sales. A salesman normally makes a sale (closes)

on 80% of his presentations. Assuming the presentations are independent, find the probability of each of the following.

a) He fails to close for the first time on his fifth attempt.

b) He closes his first presentation on his fourth attempt.

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Business Statistics Plus Pearson Mylab Statistics With Pearson Etext

ISBN: 978-1292243726

3rd Edition

Authors: Norean R Sharpe ,Richard D De Veaux ,Paul Velleman

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