Discrete

• Can be counted and known exactly
• Number of days in a week: 7
• Blood Types: O, A, B, AB, etc.
• Does not have to be an Integer
• Average number of girls in the classroom: 17.5
• Probability of rolling an even # on a dice: 0.5 or 50%
• Cost of Lunch: $3.75

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Continuous

• Can be measured/calculated but only shown as a range of values.
• It can be expressed as a function
• Distance a car has traveled
• Height of a tree
• Acceleration of a car
• Temperature

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Half Life of Phosphorous

Velocity of an Object in Free Fall

Continuous Data

Why is it impossible to know a continuous data point exactly? 

Discrete or Continuous

1. Number of channels on your TV

�2. A person's age�

3. Elements on the Periodic Table�

4. The time of day�

5. The day of the week�

6. Population of a Species�

7. Number of genes in our DNA�

8. Length of a piece of rope�

9. How happy you feel right now�

10. The speed you are walking

Discrete or Continuous

Discrete ��Discrete��Discrete��Continuous��Discrete��Discrete��Discrete��Continuous��Continuous��Continuous

1. Number of channels on your TV

�2. A person's age�

3. Elements on the Periodic Table�

4. The time of day�

5. The day of the week�

6. Population of a Species�

7. Number of genes in our DNA�

8. Length of a piece of rope�

9. How happy you feel right now�

10. The speed you are walking

Discrete or Continuous

Heating Curve of Water

Heat Added

Temperature

Discrete or Continuous