AnswersCommon Core Algebra II - MA3111 B-ICProperties of Probability Distributions

Properties of Probability Distributions Answers

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A coin is tossed three times, with possible outcomes: {HHH, HHT, HTH, THH, HTT, THT, TTH, TTT}Identify the graph of the probability distribution for the random variable representing the number of heads.

A
Option
Option A
B
Option
Option B
C
Option
Option C
2
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The probability of having less than 3 accidents in a year is .

A
0.005
B
0.010
C
0.995
3

In a survey, 100 people were asked how many car accidents they had in the past year. The estimated probability distribution for the number of accidents is shown in the table. Using the data from the table, what is the probability of having exactly 1 accident in a year?

A
0.010
B
0.080
C
0.905
4

What type of data distribution is shown on the graph?

Question illustration
A
negatively skewed
B
symmetric
C
positively skewed
5

The mean is .

A
greater than the median
B
less than the median
C
equal to the median
6

The fair spinner shown is spun 1 time. There are four possible outcomes, one for each color.Based on the picture, which statements are true?

A
The probability of each outcome is equal
B
The probability of each outcome is different.
C
The outcomes have a uniform probability distribution.
D
The outcomes have a nonuniform distribution
7

Using the data from the theoretical probability table, what is the probability of the spinner landing only once on yellow in two spins?

A
0.0625
B
0.5625
C
0.375
D
1
8

Approximately, what is the probability of getting 4, 5, or 6 heads?

A
20%
B
30%
C
45%
D
65%
9

The mode is

A
greater than the median
B
less than the median
C
equal to the median

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