mean of discrete probability distribution

While driving to Florida, Sophia averaged 72 m.p.h. 

• Discrete
• Continuous

Tags

CCSS.HSF-LE.A.1B

Is this a probability distribution?

• No

• Yes

Tags

CCSS.HSS.MD.A.1

CCSS.HSS.MD.A.2

CCSS.HSS.MD.A.3

CCSS.HSS.MD.A.4

Is this a probability distribution?

• No
• Yes

Tags

CCSS.HSS.MD.A.1

CCSS.HSS.MD.A.2

CCSS.HSS.MD.A.3

Find the missing value for P(X=5) in the probability ditribution:

Number of Toys | Probability

0| 0.03

1| 0.16

2| 0.30

3| 0.23

4| 0.17

5| ?

• 0.11

• 0.21

• 0.01

• 0.31

Tags

CCSS.HSS.MD.A.1

CCSS.HSS.MD.A.3

What does P(Y<3) mean?

• The probability that the random variable Y is greater than 3.

• The probability that the random variable Y is less than 3.

• The probability that the random variable X is greater than 3.

• The probability that the random variable X is less than 3.

Tags

CCSS.7.SP.C.5

• Yes, because all of the probabilities are between 0 and 1 inclusive and the sum of all the probabilities is 1.
• No, all probabilities are not be between 0 and 1 inclusive
• No, the sum of all the probabilities is not 1.
• Yes, because the distribution is symmetric

Tags

CCSS.HSS.MD.A.1

Classify: How many miles it takes to use up a tank of gas.

• Discrete

• Continuous

Tags

CCSS.HSN.Q.A.1

Classify: Height of a plant measured each day for 30 days.

• Discrete

• Continuous

Tags

CCSS.HSN.Q.A.1

Classify: The numbers of cheeseburgers a fast-food restaurant serves each day

• Discrete

• Continuous

The table represents the probability of guessing correct on a 5 question true-false quiz. Find the mean and the standard deviation.

• μ = .4; σ = 7.5

• μ = 2.5; σ = 1.1

• μ = 3; σ = 1.3

• μ = .1; σ = 0

Tags

CCSS.HSS.ID.A.4

CCSS.HSS.MD.A.2

CCSS.HSS.MD.A.3