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

The shelf life of a particular dairy product is normally distributed with a mean of 12 days and a standard deviation of 3 days.

About what percent of the products last between 12 and 15 days?

• 68%
• 34%
• 16%
• 2.5%

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

TEKS.MATH.7.6D

If an event cannot occur, then its probability is 

• 1
• ½
• ¼
• 0

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

The scoring of modern IQ is such that Intelligence Quotients (IQs) have a normal distribution of μ= 100 and 𝞂 = 15.

Mensa International is a non-profit organization that accepts only people with IQ score within the top 2%. What level of IQ qualifies one to be a member of Mensa?

• 115
• 130.75
• 145
• 120

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

A family has planned out game night for a whole school week. They will let a six-sided die determine if they will play a board game or a card game. If the die lands on an even number, then they will play a card game and if it lands on an odd number, they will play a board game. What is the probability that they will play a board game every night of the week?

• 0.03125

• 0.1

• 0.03333

• 0.01667

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

What is the probability that all the white striped marbles come out at the same time? Only the striped marbles.

• 4

• 1/4

• 1/40

• 1/2

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

What is the probability of spinning an odd number on the spinner?

• 1/5

• 2/5

• 3/5

• 4/5

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

TEKS.MATH.6.4E

A regular 6-sided die is to be rolled once. What is the probability that a number less than 3 is rolled?

• 1/3

• 1/6

• 1/2

• 2/3

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

Sarah, Sammie, Victor, Vicki, and Valerie are in math group. Two students are randomly picked to be the co-leaders. What is the probability that the students picked were Sammie and Victor?

• 1/25

• 2/5

• 1/5

• 1/20

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

TEKS.MATH.9-12.V.B

The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”? 

• 2/7
• 5/49
• 5/7
• 10/49

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

What is the probability that a randomly selected student is not in a club?

• $\frac{63}{32}$

• $\frac{138}{378}$

• $\frac{63}{138}$

• $\frac{240}{378}$

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

TEKS.MATH.9-12.V.B