Quarter 4 Research Test

What does the mean represent in a set of data?

• The most frequently occurring value

• The middle value when the data is arranged in ascending order

• The average value calculated by summing all values and dividing by the number of values

• The difference between the highest and lowest values in the dataset

Calculate the mean of the following dataset: 5, 10, 15, 20, 25

Mathematical Equivalence

ON

If a dataset has an even number of values, how is the median calculated?

• By taking the average of the two middle values

• By selecting the value that occurs most frequently

• By choosing the value closest to the mean

• By summing all values and dividing by the number of values

In a frequency distribution, what does the term "frequency" refer to?

• The total number of values in the dataset

• The measure of variability within the dataset

• The number of times each value occurs in the dataset

• The range of values covered by the dataset

If a dataset has an odd number of values, how is the median calculated?

• The median is the average of the two middle values.

• The median is the value that appears most frequently.

• The median is the smallest value in the dataset.

• The median is the middle value in the sorted dataset.

What is the mode of a dataset?

• The value that occurs most frequently

• The average value of the dataset

• The middle value when the dataset is arranged in ascending order

• The difference between the highest and lowest values in the dataset

Which of the following is a measure of central tendency?

• Standard deviation

• Median

• Variance

• Interquartile range

Find the median of the following dataset: 8, 12, 16, 20, 24, 28

Mathematical Equivalence

ON

 

Determine the mode of the following dataset: 2, 5, 5, 8, 10, 10, 15, 20, 25, 30

I. 2         II. 5        III. 10                IV. 30

• I

• II

• II and III

• III and IV

Which measure of central tendency represents the average of all test scores in a class divided by the number of students?

• mean

• median

• mode

• range