Quiz #2 - Discrete Probability Distribution

The probability of getting an even number in a single roll of a die is 50%.  

• REAL

• FAKE

Tags

CCSS.7.SP.C.7A

Decision-making requires the use of random variables and probability distributions.

• REAL

• FAKE

Tags

CCSS.HSS.MD.B.6

CCSS.HSS.MD.B.7

Learning decision-making skills for students can help them make their own choices and be more dependent, responsible, and confident.  

• REAL

• FAKE

Answer explanation

It should be INDEPENDENT

The probability mass function consists of values a random variable can assume and corresponding probabilities of the values.  

• REAL

• FAKE

Tags

CCSS.HSS.MD.A.3

CCSS.HSS.MD.A.4

The sum of all the probabilities of all values of the random variable is not always equal to 1.  

• REAL

• FAKE

Answer explanation

It is always equal to 1

Tags

CCSS.7.SP.C.7B

Determine whether the given values can serve as the values of a probability distribution of the random variable X that can take on only the values 1, 2, and 3. Explain your answer.

• Yes, It can serve as the values of a probability distribution of the random variable X.

• No, It can't serve as the values of a probability distribution of the random variable X.

Answer explanation

By just looking at P(3) it is already exceeds in 1.

Tags

CCSS.HSS.MD.A.3

CCSS.HSS.MD.A.4

Determine whether the given values can serve as the values of a probability distribution of the random variable X that can take on only the values 1, 2, and 3. Explain your answer.

• Yes, It can serve as the values of a probability distribution of the random variable X.

• No, It can't serve as the values of a probability distribution of the random variable X.

Tags

CCSS.7.SP.C.7B

Determine whether the given values can serve as the values of a probability distribution of the random variable X that can take on only the values 1, 2, and 3. Explain your answer.

• Yes, It can serve as the values of a probability distribution of the random variable X.

• No, It can't serve as the values of a probability distribution of the random variable X.

Answer explanation

The sum of 3 probabilities exceeds to 1 which is 1.1

Tags

CCSS.HSS.MD.A.3

CCSS.HSS.MD.A.4

Determine whether the given values can serve as the values of a probability distribution of the random variable X that can take on only the values 1, 2, and 3. Explain your answer.

• Yes, It can serve as the values of a probability distribution of the random variable X.

• No, It can't serve as the values of a probability distribution of the random variable X.

Tags

CCSS.HSS.MD.A.3

CCSS.HSS.MD.A.4

Determine whether the given values can serve as the values of a probability distribution of the random variable X that can take on only the values 1, 2, and 3. Explain your answer.

• Yes, It can serve as the values of a probability distribution of the random variable X.

• No, It can't serve as the values of a probability distribution of the random variable X.

Tags

CCSS.HSS.MD.A.3

CCSS.HSS.MD.A.4