Statistics Basics

Calculate the mean of the following numbers: 10, 15, 20, 25, 30

• 22

• 18

• 20

• 28

Find the median of the dataset: 5, 10, 15, 20, 25, 30

• 20

• 35

• 15

• 10

Identify the mode from the following dataset: 5, 10, 10, 15, 20, 20, 20

• 25

• 15

• 20

• 5

Analyzing a frequency distribution involves studying the ________ of each data point.

• frequency

• mode

• median

• mean

Calculate the standard deviation of the numbers: 2, 4, 4, 4, 5, 5, 7, 9

• 2.06

• 6.2

• 3.5

• 1.5

What type of statistics describes the main features of a dataset?

• Inferential statistics

• Prescriptive statistics

• Descriptive statistics

• Predictive statistics

Which type of diagram is used to represent data in rectangular bars?

• Pie chart

• Bar graph

• Scatter plot

• Line graph

Which type of diagram is used to represent data in a circular form?

• Bar chart

• Pie chart

• Scatter plot

• Line graph

What is the purpose of a bar diagram in statistics?

• To visually represent categorical data using rectangular bars.

• To represent data using pie slices

• To display trends over time

• To show relationships between variables

Explain the significance of a pie diagram in data representation.

• A pie diagram visually displays the proportion of different categories within a dataset.

• A pie diagram is used to display geographical information in a dataset

• A pie diagram represents the time series data in a dataset

• A pie diagram shows the temperature distribution in a dataset