TEKS.MATH.9-12.V.B.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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TEKS.MATH.9-12.V.B.1

An algebra 2 test has 6 multiple choice questions with four choices with one correct answer each. If we just randomly guess on each of the 6 questions, what is the probability that you get exactly 3 questions correct? (You need to figure out the p value first. It is not given to you.)

• 0.962
• 0.132
• 0.831
• 0.250

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TEKS.MATH.9-12.V.B.1

The mean number of accidents a week at a company is 6.4 with a standard deviation of 1.5.  What proportion of weeks would you expect to have more than 7 accidents?

• 0.3446
• 0.2856
• 0.4
• 0.6554

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TEKS.MATH.7.6D

TEKS.MATH.9-12.V.B.1

The Floppy Disk Company makes 3.5 inch floppy disks (mean) for disk drives that are 3.7 inches wide. The size of a manufactures disk is normally distributed with a standard deviation of 0.1 inches. The company manufactures 1000 disks every hour. In one hour, how many disks would you expect to be between 3.4 inches and 3.7 inches?

• 34

• 135

• 68

• 815

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TEKS.MATH.9-12.V.B.1

Is this a probability distribution?

• No

• Yes

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TEKS.MATH.9-12.V.B.1

Andrew picks one marble at a time from a box and replaces it. He repeats this process 25 times and records the results in the table. Based on the table, which color marble has an experimental probability of 1/5?

• Yellow

• Red

• Blue

• Green

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TEKS.MATH.9-12.V.B.1

If there is a 40% chance for rain, then there is a 60% chance that it will not rain. What rule in probability does the 60% conclusion represent?

• Probability Assignment Rule

• Disjoint Rule

• Subtraction Rule

• Complement Rule

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TEKS.MATH.9-12.V.B.1

What is the probability of spinning a fair 6-sided spinner and landing on an odd number?

• 1 / 2

• 5 / 6

• 6 / 6 or 1

• 0 / 6

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TEKS.MATH.9-12.V.B

TEKS.MATH.9-12.V.B.1

A regular 6-sided die is to be rolled one time. What is the probability that the number 5 is rolled?

• 1/5

• 5/6

• 1/6

• 6/5

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TEKS.MATH.9-12.V.B.1

A randomly selected group of students were asked if they like singing or painting. The Venn diagram represents the results. What is the probability that a randomly selected person does not like painting?

• 0.32

• 0.13

• 0.19

• 0.71

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TEKS.MATH.9-12.V.B.1