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

The American Red Cross says that about 11% of the U.S. population has Type B blood. A blood drive is being held at your school. What is the probability that at least 2 of the first 10 blood donors has Type B blood? 

• 0.088
• 0.697
• 0.214
• 0.303 

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

The mean and standard deviation of a population are 200 and 20, respectively. 
What is the probability of selecting 25 data values with a mean less than 190?

• 69%
• 0.6%
• 31%
• 99%

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

If Mobius draws 7 cards out of a deck with replacement, what is the probability that he gets the first heart in 6 attempts or fewer?

• 0.18
• 0.82
• 0.06
• 0.76

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

A certain brand of TV has a 50% chance of being defective. Which model could be used to determine the probability that when two TVs are chosen, they will both be defective?

• spin a spinner with 4 equal sections
• roll a die twice
• flip a coin twice
• flip a coin, then roll a die

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TEKS.MATH.7.6D

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

What is P(A and B) if P(A) = 1/2 and P(B) = 2/7, where A and B are independent events?

• 1/7
• 1/12
• 5/8
• 1/2

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

What is the probability of the arrow stopping on “X” on the first spin and “F” on the second spin?

• 5/6
• 1/36
• 1/3
• 1/6

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TEKS.MATH.9-12.V.B

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

The average waist size for teenage males is 29 inches with a standard deviation of 1.4 inch. 
If waist sizes are normally distributed, estimate the proportion of teenagers who will have waist sizes greater than 31 inches?

• 92.4%
• 10.5%
• 16%
• 7.6%

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

There is 100% chance of having fun in Math class today. What is the complement of this probability?

• 0%

• 50%

• 25%

• 20%

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

Find the experimental probability:

Roll dice: 1, 3, 3, 4, 4

P(1) =

• 3/5

• 1/6

• 2/5

• 1/5

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TEKS.MATH.7.6I

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

Which of these cannot be considered a probability of an outcome?

• 1/3

• -1/5

• 0.80

• 112%

• 1

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