← Back to lesson 6.DS.B.6.a · For families

🔢 Summarizing Data: Number of Observations

What we're learning

I can summarize a data set by reporting the number of observations (n).

🏠 Try this at home

Give your child a short list of numbers and ask how many values there are — remind them to count repeats too.

Words to know

Observation: A single recorded data value (one measurement or response).
Number of observations (n): How many data values are in the set.
Data set: The whole collection of observations.