TEKS.MATH.9-12.V.B

What is the probability that a family doesn't have a baby girl until their third child?

• 0.13
• 0.15
• 0.05
• 0.88

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TEKS.MATH.9-12.V.B

Of the mechanical engineers, what is the probability that math is their favorite subject?

• 1.91
• 52%
• 17%
• 35%

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TEKS.MATH.9-12.V.B

A day in the year is randomly chosen. Given the day is in the month of December, what is the probability the day is the 25^th? (December has 31 total days.)

• 8.5%
• 8.84%
• 80.6%
• 3.2%

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TEKS.MATH.9-12.V.B

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

What is the relative frequency for selecting a teen given that the person likes chocolate?

• .112
• .267
• .164
• .056

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TEKS.MATH.9-12.V.B

A die is rolled.  What is the probability of rolling a 5 or a number greater than 3?

• 2/3
• 1/2
• 5/6
• 1

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TEKS.MATH.9-12.V.B

Suppose the teenagers that attend public high schools get an average of 5.7 hours of sleep each night with a standard deviation of 1.7 hours.  What is the probability that a randomly selected group of 35 high school students get more than 6 hours of sleep each night?

• .430
• .148
• .281
• .087

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TEKS.MATH.9-12.V.B

Which interval shows 68% of the data given a mean of 15 and a standard deviation of 3? 

• 9 to 21
• 12 to 18
• 6 to 24
• 13 to 16

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TEKS.MATH.9-12.V.B

Is this probability assignment possible?

• YES! Because all probabilities add up to 1!

• NO! Because it doesn't have enough probabilities.

• NO! Because the probabilities do not add up to 1.

• NO! Because I cannot get a grade of 0, 1, 2, 3, or 4.

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TEKS.MATH.9-12.V.B

In her book bag, Jackie has one red pencil, one yellow pencil, one blue pencil, one green pencil, one orange pencil, and one purple pencil. She also has one red pen, one blue pen, and one black pen. If Jackie randomly selects one pencil and one pen, what is the probability that she will select a purple pencil and a black pen?

• $\frac{1}{72}$

• $\frac{1}{18}$

• $\frac{1}{10}$

• $\frac{1}{2}$

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TEKS.MATH.9-12.V.B