1. QUIZ
Time : 90 minutes

2. 1 Construct a bar graph from the frequency table besides.
Score
Number of Students 20 1 30 4 40 6 50 3 60 2 70 80 90
Calculate the mean, median, and mode.
The data set is skewed. Is the skewness positive or negative?
If the data set constructs into a circle graph, then what percentage of students who have scores between 20 and 50?

3. 1 What is the maximum and minimum score in the data set?
Number of Students 20 1 30 4 40 6 50 3 60 2 70 80 90
Calculate the lower quartile and the upper quartile.

4. Calculate the median, 5th decile,2
Given a data set:
Calculate the median, 5th decile,
and 7th decile

5. Weights of 10th Grade Students3
How many students were involved in the survey?
What is the variable of the survey?
What is the data of the survey?
Weights of 10th Grade Students
Frequency
Find: Population and its number, Which central tendency can be found easily using the graph only and should be measured, midpoint, class width, distribution shape, median class, modal class, lower-upper class boundary, what percentage of students who get score between 10.5 and 20.5, dispersion of the data
40.5
Weight (in kg)

6. Weights of 10th Grade Students3
What kind of distribution shape of data as follows?
Construct the data into frequency table from histogram.
Weights of 10th Grade Students
Frequency
Find: Population and its number, Which central tendency can be found easily using the graph only and should be measured, midpoint, class width, distribution shape, median class, modal class, lower-upper class boundary, what percentage of students who get score between 10.5 and 20.5, dispersion of the data
40.5
Weight (in kg)

7. Weights of 10th Grade Students3
How many students weigh less than 56 kg?
What percentage of students weigh between 45 kg and
55 kg?
Weights of 10th Grade Students
Frequency
Find: Population and its number, Which central tendency can be found easily using the graph only and should be measured, midpoint, class width, distribution shape, median class, modal class, lower-upper class boundary, what percentage of students who get score between 10.5 and 20.5, dispersion of the data
40.5
Weight (in kg)

8. Weights of 10th Grade Students3
Determine the class width of each interval class.
Determine the lower and upper class boundary of the 4th interval class in the data set.
Weights of 10th Grade Students
Frequency
Find: Population and its number, Which central tendency can be found easily using the graph only and should be measured, midpoint, class width, distribution shape, median class, modal class, lower-upper class boundary, what percentage of students who get score between 10.5 and 20.5, dispersion of the data
40.5
Weight (in kg)

9. Weights of 10th Grade Students3
Determine midpoint of the 2nd interval class.
Determine the median class in the data set.
Determine the modal class in the data set.
Weights of 10th Grade Students
Frequency
Find: Population and its number, Which central tendency can be found easily using the graph only and should be measured, midpoint, class width, distribution shape, median class, modal class, lower-upper class boundary, what percentage of students who get score between 10.5 and 20.5, dispersion of the data
40.5
Weight (in kg)

10. Weights of 10th Grade Students3
Write down the formula to find mean, median and mode of the following data.
Weights of 10th Grade Students
Frequency
Find: Population and its number, Which central tendency can be found easily using the graph only and should be measured, midpoint, class width, distribution shape, median class, modal class, lower-upper class boundary, what percentage of students who get score between 10.5 and 20.5, dispersion of the data
40.5
Weight (in kg)

11. Weights of 10th Grade Students3
What is the maximum and minimum data in the following data set?
Calculate Q1 and D3 of the data as follows.
Weights of 10th Grade Students
Frequency
Find: Population and its number, Which central tendency can be found easily using the graph only and should be measured, midpoint, class width, distribution shape, median class, modal class, lower-upper class boundary, what percentage of students who get score between 10.5 and 20.5, dispersion of the data
40.5
Weight (in kg)