Binomial Setting and RV Review

Which of the following is NOT an assumption of the Binomial distribution?

• All trials must be independent.
• Each trial must be classified as a success or a failure.
• All trials are dependent on each other.
• The number of successes in the trials is counted.

Tags

CCSS.HSS.MD.A.3

CCSS.HSS.MD.A.4

Is the distribution below a probability distribution? Why or why not?

• Yes. All P(x) values are between 0 and 1, and sum of P(X0 = 1

• No, not all P(x) values are between 0 and 1.

• No, sum of P(x) ≠ 1.

Tags

CCSS.HSS.MD.A.3

CCSS.HSS.MD.A.4

Which one of these variables is a continuous random variable?

• The time it takes a randomly selected student to complete an exam.
• The number of tattoos a randomly selected person has.
• The number of women taller than 68 inches in a random sample of 5 women. 
• The number of correct guesses on a multiple choice test. 

Tags

CCSS.HSS.ID.A.4

Choose the correct sign

'probability more than 7'

• P(X>7)

• P(X<7)

• P(X≥7)

• P(X≤7)

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

Choose the correct sign

'probability less than 7'

• P(X>7)

• P(X<7)

• P(X≥7)

• P(X≤7)

Choose the correct sign

'probability at least than 7'

• P(X>7)

• P(X<7)

• P(X≥7)

• P(X≤7)

Choose the correct sign

'probability at most than 7'

• P(X>7)

• P(X<7)

• P(X≥7)

• P(X≤7)

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

Choose the correct sign

'probability between 4 and 9'

• P(4<X<9)

• P(4<X≤9)

• P(4≤X≤9)

• P(4≤X<9)

Tags

CCSS.HSS.MD.B.6

CCSS.HSS.MD.B.7

Is this a binomial setting? Shuffle a deck of 52 cards. Turn over the top card. Put the card back in the deck, shuffle again. Repeat the process 50 times. Let X = the number of aces you observe.

• Yes

• No, the trials are not independent.

• No, there are more than 2 outcomes

Find the mean of the probability distribution.

• 85
• 83.2
• 87.1
• 84.4

Tags

CCSS.HSS.MD.A.2