Stats Quiz

What is the mean of the following set of numbers: 2, 3, 7, 7, 10?

• 5

• 5.8

• 6

• 7

What is the mode of the following set of numbers: 1, 2, 4, 4, 5, 6, 6, 6, 7?

• 4

• 5

• 6

• 7

What is the median of the following set of numbers: 12, 15, 11, 19, 13, 14, 16?

• 13

• 14

• 15

• 16

In a data set, if the range is 20, and the lowest number is 5, what is the highest number?

• 15

• 20

• 25

• 30

What does the range of a set of numbers represent?

• The difference between the highest and lowest numbers

• The average of the set

• The most frequently occurring number

• The middle number when the set is ordered

If a set of data is bimodal, what does this mean?

• It has one mode

• It has two modes

• It has no mode

• It has more than two modes

What is a histogram?

• A graph showing frequency of data points across intervals

• A pie chart showing percentages

• A line graph showing trends over time

• A bar graph showing categories

What is the probability of flipping a fair coin and it landing on heads?

If a bag contains 5 red marbles, 3 blue marbles, and 2 green marbles, what is the probability of randomly selecting a blue marble?

What is an outlier in a set of data?

• The highest number

• A value significantly higher or lower than most of the data

• The average value

• The most frequent value