lest: Ch 4 Test Time Limit: 02:00:00 Submit Test This Question: 1 pt 6 of 14 (0

Question

lest: Ch 4 Test Time Limit: 02:00:00 Submit Test This Question: 1 pt 6 of 14 (0 complete) This Test: 14 pts possible Determine whether the distribution is a discrete probability distribution. 0 0.0 1 0.21 2 0.40 3 0.21 4 0.09 Is the distribution a discrete probability distribution? Why? Choose the correct answer below O A. No, because some of the probabilities have values greater than 1 or less than 0. O B. Yes, because the probabilities sum to 1 and are all between 0 and 1, inclusive. C. No, because the total probability is not equal to 1. O D. Yes, because the distribution is symmetric.

Explanation / Answer

All the probabilities are between 0 and 1, inclusive.

Also,

Sum of probabilities = 0.09 + 0.21 + 0.40 + 0.21 + 0.09 = 1

Therefore,

The given distribution is a probability distribution.

Option B is correct.

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