Reading Charts and Tables

Education · 10 questions

Reading Charts and Tables: calculate totals, percentages, averages, medians, modes, ratios and probabilities from numerical data.

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1. Five numbers sum to 420. If four are 70, 85, 95 and 110, what is the missing number?

   1. 75
   2. 65
   3. 60
   4. 55
   Show the answer

   C) 60

2. In a class of 24 students, 25% receive scholarships. How many students receive a scholarship?

   1. 6
   2. 5
   3. 7
   4. 8
   Show the answer

   A) 6

3. Sales in months A, B and C are 120, 90 and 150, respectively. What is the three-month average?

   1. 120
   2. 130
   3. 100
   4. 110
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   A) 120

4. In a survey, A received 40 responses, B 30, C 20 and D 10. Which category is the mode?

   1. B
   2. D
   3. C
   4. A
   Show the answer

   D) A

5. Income values (in thousands): 50, 60, 70, 80, 90. What is the median?

   1. 75
   2. 70
   3. 60
   4. 80
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   B) 70

6. A test has 18 correct, 6 incorrect and 6 blank answers. What percentage of answers are correct?

   1. 66.7%
   2. 75%
   3. 50%
   4. 60%
   Show the answer

   D) 60%

7. Sales shares are 40% for X, 35% for Y and 25% for Z. What is the combined share of X and Y?

   1. 65%
   2. 70%
   3. 75%
   4. 80%
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   C) 75%

8. Monthly visitor counts are 300, 450 and 600. What is the ratio of the middle month's count to the first month's count?

   1. 1.5
   2. 2
   3. 3
   4. 1.2
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   A) 1.5

9. A class has 14 girls and 11 boys. What fraction of the class is made up of girls?

   1. 11/25
   2. 14/25
   3. 7/12
   4. 14/14
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   B) 14/25

10. A box contains 5 red, 3 blue and 2 green cards. What is the probability of randomly selecting a blue card?

    1. 3/5
    2. 2/10
    3. 5/10
    4. 3/10
    Show the answer

    D) 3/10