Understanding Statistical Vocabulary

This video introduces key statistical vocabulary and concepts, including data observations, population, samples, and random sampling. It explains frequency and measures of central tendency such as mean, median, mode, and range. The video also covers various data visualization techniques like box plots, histograms, and line plots. Finally, it concludes with a call to action to subscribe and share the content.

What is the process of collecting, analyzing, and interpreting data called?

• Data Mining

• Data Science

• Statistics

• Mathematics

What term describes the complete set of objects being studied?

• Frequency

• Census

• Population

• Sample

In a random sample, what is true about each item in the population?

• It has a higher chance of being selected

• It has an equal chance of being selected

• It is never selected

• It is always selected

What is the term for the collection of every member of the population?

• Survey

• Sample

• Census

• Frequency

How is the mean of a data set calculated?

• By adding all numbers and dividing by the count

• By finding the middle value

• By finding the most frequent value

• By subtracting the smallest number from the largest

Which plot divides data into five sections including quartiles?

• Histogram

• Line Plot

• Box and Whisker Plot

• Stem-and-Leaf Plot

What type of graph uses columns that touch to display quantitative groups?

• Pie Chart

• Line Plot

• Box Plot

• Histogram

In a stem-and-leaf plot, what does the 'stem' represent?

• The total sum

• The average

• The first digit

• The last digit

When is it best to use a line plot?

• When data is qualitative

• When data is categorical

• When comparing fewer than 25 data points

• When comparing more than 50 data points

What is the main purpose of a line plot?

• To compare parts of a whole

• To show the relationship between two variables

• To display data in categories

• To show the frequency of data along a number line