Ontario MPT: Data and probability

All 14 questions in this test

Every question and its answer choices. The correct answers and explanations appear when you take the test above.

1. A survey about school lunches asks only students in the chess club. What is the main problem?

   1. Chess club members cannot answer surveys
   2. The sample is not representative of all students
   3. The survey has too many questions
   4. Lunch is not a suitable survey topic

2. A bar graph's vertical axis starts at 90 instead of 0. What effect can this have?

   1. Small differences look much larger
   2. The graph becomes more accurate
   3. The bars show percentages instead
   4. The data values change

3. A spinner lands on blue 18 times in 60 spins. What is the experimental probability of blue?

   1. 0.3
   2. 0.18
   3. 0.42
   4. 0.6

4. Find the mean of 4, 8, 6, 5 and 7.

   1. 7
   2. 5
   3. 6
   4. 30

5. Which graph is best for showing how a class's heights are distributed across intervals such as 140–149 cm and 150–159 cm?

   1. A circle graph
   2. A pictograph of pets
   3. A line graph
   4. A histogram

6. Shoe sizes in a class are 6, 7, 7, 8, 8, 8, 9. What is the mode?

   1. 7
   2. 8
   3. 7.6
   4. 9

7. A fair six-sided die is rolled once. What is the probability of rolling a number less than 3?

   1. 1/6
   2. 1/2
   3. 2/3
   4. 1/3

8. A fair die is rolled and a coin is tossed. How many outcomes are in the sample space?

   1. 12
   2. 2
   3. 6
   4. 8

9. On a scatter plot, as hours of practice increase, the number of errors decreases. What relationship is shown?

   1. A causal proof
   2. A negative correlation
   3. A positive correlation
   4. No correlation

10. A bag holds 4 red, 6 yellow and 10 green counters. What is the probability of drawing a yellow counter?

    1. 3/5
    2. 1/6
    3. 6/14
    4. 3/10

11. A data set is 12, 14, 13, 15, 61. Which measure is most affected by the 61?

    1. The mode
    2. The mean
    3. The number of values
    4. The median

12. Which is an example of qualitative data?

    1. Favourite season of each student
    2. Number of siblings each student has
    3. Time to run 100 m in seconds
    4. Height of each student in cm

13. Two fair coins are tossed. What is the probability of getting exactly one head?

    1. 3/4
    2. 1/3
    3. 1/2
    4. 1/4

14. Find the median of the even-sized set 3, 9, 4, 12, 7, 10.

    1. 8
    2. 7.5
    3. 9
    4. 7