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Data & 1-Variable Statistics Guide on TI-34

Learn how to enter statistical data sets and calculate mean, standard deviation, and sample size.

1. 1-Variable Statistics Overview

Analyze statistical lists with key metrics:

  • $\bar{x}$: Mean (Average)
  • $n$: Total Data Count

Problem: Find average of data set: 10, 20, 30

  • Step 1: Calculate sum: 10 + 20 + 30 = 60
  • Step 2: Divide by count: ÷ 3
  • Step 3: Press enter

Result Output: 20