3. A recent report was issued that suggested 45% of all cell phone calls in 2022 will be scams. Suppose 500 cell phone calls are selected at random. a. Find the probability that exactly 245 of the cell phone calls will be scams.

3. A recent report was issued that suggested 45% of all cell phone calls in 2022 will be scams. Suppose 500 cell phone calls are selected at random. a. Find the probability that exactly 245 of the cell phone calls will be scams.

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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Question

3.
A recent report was issued that suggested 45% of all cell phone calls in 2022 will be scams.
Suppose 500 cell phone calls are selected at random.
a. Find the probability that exactly 245 of the cell phone calls will be scams.

b. Find the probability that at least 240 of the cell phone calls will be scams.

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