Question

Which table is a probability distribution table?
Double checking. I think it is the last one.

Will give BRAINLIEST answer. Thank you very much!

Answer 1

The valid probability distributions for a discrete random variable are :

Option D

Further explanation

The probability of an event is defined as the possibility of an event occurring against sample space.

Let us tackle the problem.

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In a discrete random variable , the sum of all the probability of distributions must equal to 1. The minimum value of probability is 0 and the maximum value of probability is 1.

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Option A :

$0.2 + 0.35 + 0.15 + 0.25 = 0.95 \ne 1$ ⤬

This is not the valid probability distributions for a discrete random variable because the sum of all the probability of distributions is not equal to 1.

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Option B :

$-0.2 + (-0.1) + 0.4 + 0.3 = 0.4 \ne 1$ ⤬

This is not the valid probability distributions for a discrete random variable because the sum of all the probability of distributions is not equal to 1.

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Option C :

$0.4 + 1.05 + 0.02 + 0.35 = 1.82 \ne 1$ ⤬

This is not the valid probability distributions for a discrete random variable because the sum of all the probability of distributions is not equal to 1.

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Option D :

$0.4 + 0.15 + 0.25 + 0.2 = 1$ ✔

This is the valid probability distributions for a discrete random variable

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Learn more

• Different Birthdays : https://brainly.com/question/7567074
• Dependent or Independent Events : https://brainly.com/question/12029535
• Mutually exclusive : https://brainly.com/question/3464581

Answer details

Grade: High School

Subject: Mathematics

Chapter: Probability

Keywords: Probability , Sample , Space , Six , Dice , Die