What does statistics primarily deal with in its singular form?

Collecting, analyzing, and interpreting data.

Which of the following is a continuous variable? A) Number of children B) Temperature C) Shoe size D) Age in whole years

B) Temperature

Riddle: I can take any value within a range, but I can't be counted as whole numbers. What am I?

Continuous variable

True or False: A variable can only take specific values in a dataset.

False. A variable can be continuous (taking any value) or discrete (taking specific values).

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

Tabulation

What is the main purpose of frequency in statistics?

To represent the number of times a specific value appears in a dataset.

Which type of distribution includes the upper limit of one class in the next? A) Exclusive B) Inclusive C) Cumulative D) Discrete

B) Inclusive

Fill in the blank: The difference between the actual upper limit and the lower limit of a class interval is called ______.

Class-size

True or False: A cumulative frequency table displays the frequencies of each class without adding previous frequencies.

False. A cumulative frequency table includes the sum of frequencies of all previous classes.

What is the class-mark for the class interval 20-30?

25

Riddle: I show numerical data visually and make it easier to understand. What am I?

Graphical representation

Fill in the blank: A graph made of rectangles where class intervals are the bases is known as a ______.

Histogram

How do you calculate the adjustment factor when converting inclusive to exclusive class intervals?

Adjustment factor = (Lower limit of next class - Upper limit of current class) / 2

Which frequency distribution type has class intervals where the upper limit coincides with the lower limit of the next class? A) Cumulative B) Inclusive C) Exclusive D) Continuous

C) Exclusive

Short Answer: What is a variable?

A quantity that changes from one individual to another.

True or False: The class limits include the boundary values of a class interval.

True.

What is a frequency distribution?

A table showing data values and their corresponding frequencies.

Riddle: I am a table that shows how often each value occurs in a dataset. What am I?

Frequency distribution

Fill in the blank: The sum of frequencies of all classes up to and including a particular class is called ______.

Cumulative frequency

What do class intervals represent in a frequency distribution?

The range between two numbers.