What is the singular meaning of statistics?

The subject of statistics, which involves collecting, analyzing, presenting, and interpreting numerical data.

Which of the following best describes frequency? A) The total number of data points B) The number of times a specific value appears C) The average of the data D) The total sum of the data

B) The number of times a specific value appears

True or False: Raw data is data that has been organized and analyzed.

False. Raw data is data in its original, unorganized form.

Fill in the blank: The process of arranging data in a table is called ______.

Tabulation

Riddle: I organize data in groups, making patterns clear and neat. I help when values are too many to count, what am I?

Grouped frequency distribution

What is the class mark for the class interval 30-40?

35

Which type of graph uses sectors of a circle to represent data proportions?

Pie graph (or Pie chart)

True or False: In a histogram, there are gaps between the bars.

False. Histograms have no gaps between bars as class intervals are continuous.

Fill in the blank: A frequency table organizes data by listing unique values and their ______.

Frequencies

What is the purpose of tally marks in a frequency table?

To count occurrences of each value.

Which of the following is NOT a step in creating a frequency distribution table? A) Listing unique values B) Counting frequencies C) Sorting data alphabetically D) Presenting values and frequencies in a table

C) Sorting data alphabetically

True or False: The upper limit of a class interval is included in that interval.

False. The upper limit of one interval is included in the next interval.

Riddle: I represent data in bars, each one standing tall, telling you how many in total, what am I?

Bar graph (or Bar chart)

What is the main purpose of graphical representations of data?

To make data easier to understand.

Fill in the blank: The lower class limit is the ______ number in a class interval.

Smaller

What is the formula to calculate the class mark?

Class Mark = (Lower Class Limit + Upper Class Limit) ÷ 2

Which type of graph shows two sets of data side by side for comparison?

Double bar graph

True or False: Arrayed data is data in its original, unorganized form.

False. Arrayed data is data arranged in ascending or descending order.

What is the first step in creating a grouped frequency distribution table?

Determine the class intervals based on the range of data.

Riddle: I am a collection of data points, but not a single one. I help you see the whole picture, what am I?

Frequency distribution