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Chapter 4: Q.26 (page 284)

Find the probability that a physics major will do post-graduate research for at most three years. P(x鈮�3) = _______

Short Answer

Expert verified

The probability that a physics major will do post-graduate research for at most three years is:

P(x鈮�3)=0.70

Step by step solution

01

Given Information

A physics teacher wants to know what percentage of physics students will undertake post-graduate research in the coming years. He has the probability distribution supplied to him.

02

Concept Used

The probabilities of Xtaking different values can be summed as they are mutually exclusive events.

03

Calculation & Explanation

From the above table, probability that a Physics major will do post-graduate research for at most 3years that is: P(X鈮�3)is

P(1)+P(2)+P(3)=0.35+0.20+0.15=0.70

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