question archive If Sam can purchase up to 3 ice cream cones and the probabilities that he/she purchases 0, 1, 2, or 3, are 0
If Sam can purchase up to 3 ice cream cones and the probabilities that he/she purchases 0, 1, 2, or 3, are 0
Subject:StatisticsPrice:2.86 Bought3
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?
Group of answer choices
Yes, as all are between 0 and 1
No, as they do not add to 1
No, as no probability is between 0 and 1
Yes, as they are all positive
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A probability distribution usually adds up to one. In the case with Sam, the probabilities add up to 0.20 + 0.45 + 0.35 + 0.05 = 1.05 and thus not a probability density or distribution function
