Cookie policy · You can change your choice at any time on the page „Cookies“.

Accessibility

Text size
Read aloud

Your browser reads the text with the voice it has for this language.

Accessibility statement
Quiz

Grade 8: Data and probability

10 questions with solutions for grade 8: population and sample, frequency tables, charts, stem-and-leaf, grouped data, complementary events, dependent and independent events.

Type the number or choose the right answer. When you finish, click Check answers and see the solutions.

1. A survey of 200 of the 1500 pupils in a school. What is the sample?

2. Data: 2, 3, 3, 4, 4, 4, 5. What is the frequency of 4?

3. Stem-and-leaf: 3 | 2 5 7 and 4 | 1 8. What is the median?

4. Groups 0–10 (4) and 10–20 (6). Estimate the mean using the midpoints.

5. P(A) = 0.3. What is the probability of the complementary event?

6. The probability of an even number on a dice?

7. A and B are mutually exclusive. P(A) = 0.2, P(B) = 0.5. P(A or B)?

8. Two coins are tossed. The probability of two heads?

9. How many elementary events are there when throwing a dice?

10. A bag has 4 red and 6 blue balls. A ball is taken, put back, and another is taken. The probability of red both times?