The sample space for an experiment contains 4 outcomes (1,2,3,4) with probabilities shown below: P(1) = .2, P(2) = .5, P(3) = .25, P(4) = .05 Find the probability that either 1 or 2 occurs.   Question 1 options:   .3   .35   .7   .2 or .5

MATLAB: An Introduction with Applications
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The sample space for an experiment contains 4 outcomes (1,2,3,4) with probabilities shown below:

P(1) = .2, P(2) = .5, P(3) = .25, P(4) = .05

Find the probability that either 1 or 2 occurs.

 

Question 1 options:

 

.3

 

.35

 

.7

 

.2 or .5

Expert Solution
Step 1

We have given that, 

The sample space for an experiment contains 4 outcomes (S) = (1,2,3,4 ) 

Ans probabilities, 

P(1) = .2, P(2) = .5, P(3) = .25, (4) = .05

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