AnswersGeometry B SS26Unit Test

Unit Test — Unit test Answers

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Dependent events can best be described as

A
two or more events that have the same probabilities.
B
two or more events that do not have the same probabilities.
C
a group of events whose later outcomes are not affected by previous outcomes.
D
a group of events whose later outcomes are affected by previous outcomes.
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A random number generator is used to create a list of 300 single-digit numbers. Of those 300 numbers, 146 are odd and 154 are even. The number 8 was generated 22 times.What is the experimental probability of an even number other than 8 being generated? Write your answer as a decimal to the nearest hundredths place.

A
0.23
B
0.35
C
0.44
D
0.52
23

Aaron, Bob, and Charlotte are running a race. Which event would be considered dependent?

A
determining the chance that Bob comes in first or third
B
determining whose coach runs the stopwatch
C
determining which person begins on the inside lane
D
determining first, second, and third place runners
24

A security alarm requires a four-digit code. The code can use the digits 0–9 and the digits cannot be repeated.Which expression can be used to determine the probability of the alarm code beginning with a number greater than 7?

A
StartFraction (2 P 1) (9 P 3) Over 10 P 4 EndFraction
Option A
B
StartFraction (2 C 1) (9 C 3) Over 10 C 4 EndFraction
Option B
C
StartFraction (10 P 1) (9 P 3) Over 10 P 4 EndFraction
Option C
D
StartFraction (10 C 1) (9 C 3) Over 10 C 4 EndFraction
Option D
25

Which probabilities are correct? Select two options.

A
P(A|C) =
Option A
B
P(C|B) =
Option B
C
P(A) =
Option C
D
P(C) =
Option D
E
P(B|A) =
Option E

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