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# Unit 11: Data and statistics

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## About this unit

Let's collect and use data to make smart predictions about the world around you! You'll learn how to compare outcomes, to visualize the shape of the data, and to pick a graph type that shows its key features.### Practice

- Statistical questionsGet 5 of 7 questions to level up!

### Practice

- Creating frequency tablesGet 3 of 4 questions to level up!
- Creating dot plotsGet 3 of 4 questions to level up!
- Reading dot plots & frequency tablesGet 3 of 4 questions to level up!
- Estimate center using dot plotsGet 3 of 4 questions to level up!

### Practice

- Create histogramsGet 3 of 4 questions to level up!
- Read histogramsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 560 Mastery points

### Learn

### Practice

- Calculating the meanGet 3 of 4 questions to level up!
- Calculating the medianGet 3 of 4 questions to level up!
- Calculating the mean: data displaysGet 3 of 4 questions to level up!
- Calculating the median: data displaysGet 3 of 4 questions to level up!

### Learn

### Practice

- Missing value given the meanGet 3 of 4 questions to level up!
- Effects of shifting, adding, & removing a data pointGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 480 Mastery points

### Learn

### Practice

- Interquartile range (IQR)Get 3 of 4 questions to level up!

### Learn

### Practice

- Reading box plotsGet 3 of 4 questions to level up!
- Creating box plotsGet 3 of 4 questions to level up!
- Interpreting quartilesGet 3 of 4 questions to level up!

### Practice

- Mean absolute deviation (MAD)Get 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

### Practice

- Comparing data displaysGet 3 of 4 questions to level up!

### Learn

### Practice

- Shape of distributionsGet 3 of 4 questions to level up!
- Clusters, gaps, & peaks in data distributionsGet 5 of 7 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

Up next for you:

Level up on all the skills in this unit and collect up to 2100 Mastery points!