Introduction to Statistics gives Grade 7 Computer Science students a practical foundation in describing, calculating, and comparing numerical data. Through examples involving reading times and student groups, learners explore how the mean, median, range, and distribution reveal different features of a data set. The central lesson is that two groups can share the same mean while having very different patterns of values.

From Numerical Values to Meaningful Conclusions

Students work with small numerical data sets to calculate statistical summaries and interpret what those results reveal. They practise finding the mean by adding values and dividing by the number of values, identifying the median after arranging data in order, and calculating the range by subtracting the smallest value from the largest. They also examine distributions to identify clusters, gaps, and possible outliers.

The reading passage, Comparing Data with Statistics, develops these ideas through a direct comparison of two groups recording daily reading minutes. Both groups have a mean of 12 minutes, but their ranges differ substantially. This example shows why a single numerical summary may not tell the whole story and why examining original values alongside statistical measures supports better conclusions.

What Students Practise

• Statistics in conversation: explore statistical ideas through a dialogue-based activity.
• Matching questions: connect statistical vocabulary with its meaning.
• Complete the paragraph: apply key terms in context, including mean, median, range, distribution, and outlier.
• Label the diagram: work with a visual activity related to the lesson.
• Reading comprehension: interpret explanations and examples about comparing data with statistics.
• Multiple-choice questions: calculate statistical measures, identify distributions, and reason about changes in data.
• True-or-false questions: check statements about medians, ranges, distributions, and dot plots.
• Short-answer questions: calculate summaries and explain differences in data spread.
• Extended response: compare two reading-time data sets using mean, median, range, and distribution evidence.

Included Resource

• Printable Introduction to Statistics worksheet covering the activities and question types described above.
• Separate Teacher Guide PDF containing learning objectives, teaching tips, discussion questions, and common mistakes.

The resource details do not specify a separate answer key, so one is not listed as an included extra.

Classroom Uses

Use this Grade 7 statistics worksheet during a Computer Science lesson on Data and Information, for guided practice with numerical summaries, independent work, or a review of statistical vocabulary and calculations. The reading passage provides a context for discussing why equal means do not necessarily indicate similar data sets. Students can use the comparison tasks to explain their reasoning with numerical evidence rather than relying on a single measure.

The accompanying teacher guide offers planning support through learning objectives, teaching tips, discussion questions, and common mistakes. These notes can help teachers focus discussion on calculation accuracy, interpreting spread, and the importance of checking original data before drawing conclusions.

Subject: Computer Science
Grade: Grade 7
Lesson topic: Data and Information
Curriculum framework: General; no specific curriculum standard is identified in the resource details.