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

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement.P(both marbles are purple)

• 2/9
• 1/3
• 1/2
• 1/4

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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.9-12.V.B.1

Choose the correct answer
If P(A) denote the probability of an event A, then _____ 

• P(A) < 0
• P(A) > 1
• 0 ≤ P(A) ≤ 1
• -1 ≤ P(A) ≤ 1

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

6.5 CLT:  Red blood cell counts of women are normally distributed with a mean of 4.577 and a standard deviation of 0.382.  What percentage of women have red blood cell counts in the normal range from 4.2 to 5.4?

• 82.3%
• 77.8%
• 72.6%
• 68%

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

What is the probability of spinning green?

• 0
• 1/4
• 1/2
• 3/4

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

TEKS.MATH.9-12.V.B

Find the missing value for P(X=5) in the probability ditribution:

Number of Toys | Probability

0| 0.03

1| 0.16

2| 0.30

3| 0.23

4| 0.17

5| ?

• 0.11

• 0.21

• 0.01

• 0.31

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

A test is made of H₀ : µ = 17 versus H₁ : µ < 17 is performed using α = 0.01 significance level. The value of the test statistic is z = -2.68 and it is concluded that H₀ is rejected.

If the true value of µ is 17, is the conclusion a Type I Error, Type II error, or a correct decision?

• Type I

• Type II

• Correct Decision

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

What is the complement of tails on a coin? (opposite)

• heads

• tails

• quarter

• coin

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

Determine the probability of the following even occuring: You flip a fair coin and the coin will land heads up.

• 0

• 1/4

• 1/2

• 1

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

There are 3 red marbles, 4 blue marbles, 2 green marbles, and 6 clear marbles in a burlap bag. One marble is randomly pulled from the bag. What is the probability the marble was green?

• 1/2

• 1/7

• 2/15

• 2/17

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