Data Analysis & Probability

Mean, median, mode, range, basic probability, graphs, tables, and charts.

Detailed SSAT Tested Points

Data analysis and probability usually make up about 10-15% of SSAT Upper Level math. Questions are often straightforward, but students must read labels and units carefully.

Statistics

  • Mean
  • Median
  • Mode
  • Range

Probability

  • Basic probability
  • Favorable outcomes over total outcomes
  • Convert probability to fraction, decimal, or percent when needed

Visual Data

  • Reading graphs
  • Tables
  • Charts
  • Compare values, totals, and trends

Core Knowledge

Mean: sum ÷ number of values.
Median: middle value after ordering.
Mode: most frequent value.
Probability: favorable outcomes ÷ total outcomes.

Practice

  1. Find the mean of 6, 8, 10, 10, 16.
  2. Find the median of 12, 3, 9, 15, 7.
  3. Find the mode of 4, 5, 4, 6, 7, 4, 8.
  4. A bag contains 4 red and 6 blue marbles. What is the probability of selecting red?
  5. If 8 out of 20 students chose chess, what percent chose chess?
  6. The range of a set is 18. If the smallest value is 7, what is the largest value?
Show Answer Key

1. 10.

2. 9.

3. 4.

4. 2/5 or 40%.

5. 40%.

6. 25.

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