CAA Probability & Statistics

Question 1

What is the probability of rolling a sum of 7 with two six-sided dice?

Accepted Answer

1/6

Answer

1/12

Answer

1/8

Answer

1/4

Question 2

What does the expected value of a probability distribution represent?

Accepted Answer

The long-term average outcome

Answer

The most frequently occurring value

Answer

The range of values

Answer

The highest probability outcome

Question 3

If a fair coin is flipped twice, what is the probability of getting two heads?

Accepted Answer

1/4

Answer

1/2

Answer

1/3

Answer

1/8

Question 4

Which measure of central tendency is most affected by extreme values?

Accepted Answer

Mean

Answer

Median

Answer

Mode

Answer

Range

Question 5

What does a standard deviation measure in a dataset?

Accepted Answer

The spread of values around the mean

Answer

The difference between highest and lowest values

Answer

The middle value in the dataset

Answer

The most frequently occurring value

Question 6

In a normal distribution, what percentage of data falls within one standard deviation of the mean?

Accepted Answer

68%

Answer

50%

Answer

75%

Answer

95%