Statistics and probability

Question 1 of 10

A bag has 3 red and 5 blue balls. The probability of picking a red ball is

Question 2 of 10

The marks 4, 7, 7, 8, 9 have a mean of

Question 3 of 10

Find the mode of 2, 5, 5, 7, 9, 5, 2.

Question 4 of 10

A spinner has 4 equal sections numbered 1–4. The probability of landing on 3 is

Question 5 of 10

A bag has 4 red and 6 white balls. What is the probability of picking a red ball?

Question 6 of 10

Find the mean of 4, 7, 9, 10 and 15.

Question 7 of 10

A bag has 5 red and 5 white balls. The probability of picking a white ball is

Question 8 of 10

A die is thrown. The probability of an even number is

Question 9 of 10

Find the median of 3, 8, 5, 9, 2.

Question 10 of 10

In a pie chart, a group making up 25% of the total has a sector angle of