If Sam can purchase up to 3 ice cream cones and the probabilities that he/she purchases 0,1,2 or 3, are 0

Management Jan 31, 2021

If Sam can purchase up to 3 ice cream cones and the probabilities that he/she purchases 0,1,2 or 3, are 0.20, 0.45, 0.35 and 0.05 respectively, is this a valid probability distribution?

1. yes, as they are all positive

2. yes, as all are between 0 and 1

3. no, as they do not add to 1

4. no, as no probability is bwteen 0 and 1

Expert Solution

Answer:

3. as they do not add to 1

Explanation:

Total Probability =0.20 + 0.45 + 0.35 + 0.05 = 1.05 $\neq$ 1

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