WorksheetsEstimating Mean and Range from Grouped Frequency Table Quiz
Total questions: 10
Worksheet time: 20mins
1. The following table shows the distribution of the weights of a group of students. Estimate the mean weight of the students. Weight (kg) Frequency 50 - 60 5 60 - 70 8 70 - 80 12 80 - 90 10
70 kg
74.5 kg
65.5 kg
80.5 kg
2. A grouped frequency table shows the distribution of the heights of a group of students. Estimate the range of the heights of the students. Height (cm) Frequency 140 - 150 6 150 - 160 10 160 - 170 8 170 - 180 4
100 cm
20 cm
60 cm
40 cm
3. The following table represents the distribution of the scores of a class in a test. Estimate the mean score of the class. Score Frequency 40 - 50 6 50 - 60 12 60 - 70 8 70 - 80 4
60
75
65
50
4. A grouped frequency table shows the distribution of the ages of a group of people. Estimate the range of the ages of the people. Age Frequency 20 - 30 15 30 - 40 20 40 - 50 10 50 - 60 5
25 years
40 years
60 years
10 years
5. The following table represents the distribution of the number of siblings of a group of students. Estimate the mean number of siblings of the students. Number of Siblings Frequency 0 - 2 18 2 - 4 12 4 - 6 8 6 - 8 4
5.2
4.5
2.8
3.6
6. A grouped frequency table shows the distribution of the incomes of a group of people. Estimate the range of the incomes of the people. Income (USD) Frequency $1000 - $2000 10 $2000 - $3000 15 $3000 - $4000 8 $4000 - $5000 5
$1000 - $3000
$1000 - $5000
$2000 - $4000
$3000 - $5000
7. The following table shows the distribution of the ages of a group of students. Estimate the mean age of the students. Age Frequency 15 - 20 5 20 - 25 10 25 - 30 15 30 - 35 8
30.5
22.5
27.5
18.5
8. A grouped frequency table shows the distribution of the heights of a group of people. Estimate the range of the heights of the people. Height (cm) Frequency 120 - 130 12 130 - 140 18 140 - 150 10 150 - 160 6
20 cm
40 cm
60 cm
100 cm
9. The following table represents the distribution of the test scores of a class. Estimate the mean score of the class. Score Frequency 60 - 70 8 70 - 80 12 80 - 90 10 90 - 100 6
95
80
70
85
10. A grouped frequency table shows the distribution of the ages of a group of employees. Estimate the range of the ages of the employees. Age Frequency 25 - 35 15 35 - 45 20 45 - 55 10 55 - 65 5
15
100
5
40
