7th Grade: Data Analysis

Front

What is the definition of data analysis?

Back

Data analysis is the process of inspecting, cleansing, transforming, and modeling data to discover useful information, inform conclusions, and support decision-making.

Front

What is a box and whisker plot?

Back

A box and whisker plot is a graphical representation of data that shows the distribution of a dataset based on a five-number summary: minimum, first quartile, median, third quartile, and maximum.

Front

What does the five-number summary include?

Back

The five-number summary includes the minimum value, first quartile (Q1), median (Q2), third quartile (Q3), and maximum value of a dataset.

Front

How do you calculate the percentage of a group?

Back

To calculate the percentage, divide the part by the whole and multiply by 100. For example, if 25 out of 100 people chose gummy bears, the percentage is (25/100) * 100 = 25%.

Front

What is the median in a dataset?

Back

The median is the middle value when a dataset is ordered from least to greatest. If there is an even number of observations, the median is the average of the two middle numbers.

Front

What is the mode of a dataset?

Back

The mode is the value that appears most frequently in a dataset. A dataset may have one mode, more than one mode, or no mode at all.

Front

What is a histogram?

Back

A histogram is a type of bar graph that represents the frequency distribution of numerical data, showing how many data points fall within specified ranges (bins).

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities (e.g., colors, names), while quantitative data represents numerical values that can be measured (e.g., height, weight).

Front

How do you interpret a bar graph?

Back

To interpret a bar graph, look at the height or length of the bars to compare different categories or groups, and read the labels to understand what each bar represents.

Front

What is a line graph used for?

Back

A line graph is used to display data points over time, showing trends and changes in values across a continuous scale.