CCSS.Math.Content.HSS.MD.A.1

A marketing survey compiled data on the number of cars in households.  If X = the number of cars in a randomly selected household, and we omit the rare cases of more than 5 cars, then X has the following probability distribution: 
X           0          1          2          3           4           5    
P(X)   0.24    0.37    0.20    0.11    0.05     0.03
What is the probability that a randomly chosen household has at least two cars?

• 0.20
• 0.29
• 0.39
• 0.61

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CCSS.Math.Content.HSS.MD.A.1

Is this a probability distribution?

• No
• Yes

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CCSS.Math.Content.HSS.MD.A.3

CCSS.Math.Content.HSS.MD.A.1

The table represents the probability of guessing correct on a 5 question true-false quiz.  Is it unusual to get 0 correct?

• No, since the probability is less than or equal to .05.
• Yes, since the probability is less than or equal to .05
• No, since the probability is greater than .05.
• Yes, since the probability is greater than .05.

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CCSS.Math.Content.HSS.MD.A.1

Which of the following is true about every random variable

• It takes on numerical or categorical values.
• It describes the results of a random phenomenon.
• It’s behavior can be described by a probability distribution.
• (b) and (c) are true, but not (a).

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CCSS.Math.Content.HSS.MD.A.3

CCSS.Math.Content.HSS.MD.A.1

Is this a probability distribution?

• No

• Yes

Tags

CCSS.Math.Content.HSS.MD.A.1

Which gray area shows a probability closer to 0.5?

• 
• 
• 
• 

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CCSS.Math.Content.HSS.MD.A.1