statistics and probability

Question 1

What does the mean of a data set represent?

Accepted Answer

The average of all numbers

Question 2

Which of the following is NOT a measure of central tendency?

Accepted Answer

Range

Question 3

Which term describes the likelihood of an event occurring?

Accepted Answer

Probability

Question 4

If an event is certain to happen, what is its probability?

Accepted Answer

1

Question 5

What is the range of this data: 4, 8, 15, 16, 23, 42?

Accepted Answer

38

Question 6

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

Accepted Answer

Mean

Question 7

What is the probability of rolling an even number on a standard die?

Accepted Answer

1/2

Question 8

If a spinner has 4 equal sections (red, blue, green, yellow), what is the probabilityof landing on blue?

Accepted Answer

1/4

Question 9

What is the median of the data set: 3, 5, 7, 9, 11?

Accepted Answer

7

Question 10

What kind of graph is best for showing parts of a whole?

Accepted Answer

Pie chart

Question 11

What is the probability of flipping a fair coin and getting heads?

Accepted Answer

0.5

Question 12

What does the mode of a data set represent?

Accepted Answer

The most frequent number

Questions 12