On most social media platforms, 69% of all ads are targeted ads. Ad-blockers attempt to block such targeted ads before they are delivered to the user. One such ad-blocker has a 51% chance of blocking an ad if it is actually targeted, and a 25% chance of blocking an ad that is not targeted. a. If an ad is blocked by the ad-blocker, what is the probability that it was not a targeted ad? Answer in exact fraction, or rounded to at least 4 decimal places b. If the user is served an ad which was not blocked, what is the probability that it was targeted? Answer in exact fraction, or rounded to at least 4 decimal places

On most social media platforms, 69% of all ads are targeted ads. Ad-blockers attempt to block such targeted ads before they are delivered to the user. One such ad-blocker has a 51% chance of blocking an ad if it is actually targeted, and a 25% chance of blocking an ad that is not targeted. a. If an ad is blocked by the ad-blocker, what is the probability that it was not a targeted ad? Answer in exact fraction, or rounded to at least 4 decimal places b. If the user is served an ad which was not blocked, what is the probability that it was targeted? Answer in exact fraction, or rounded to at least 4 decimal places

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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