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### Course: 6th grade (Eureka Math/EngageNY)>Unit 6

Lesson 2: Topic B: Summarizing a distribution that is approximately symmetric using the mean and mean absolute deviation

# Effects of shifting, adding, & removing a data point

You might need: Calculator

## Problem

Mariah works at a zoo. She was looking at some data showing the masses of their $5$ African elephants. The mean mass of the elephants was $3,800\phantom{\rule{0.167em}{0ex}}\text{kg}$, and the median mass was $3,600\phantom{\rule{0.167em}{0ex}}\text{kg}$. The heaviest elephant, named Omar, was recorded as $6,000\phantom{\rule{0.167em}{0ex}}\text{kg}$.
Mariah found out that Omar's mass was recorded incorrectly, and that Omar actually weighed $7,000\phantom{\rule{0.167em}{0ex}}\text{kg}$.
How will Omar's mass increasing affect the mean and median?