Discrete and continuous measurements - Higher

Test Bite

You scored 8 out of 8

1. State whether the following are discrete or continuous variables: The number of people in a record shop.: You said: discrete

Well done, you can only have a whole number of people!
2. The height of a CD rack.: You said: continuous

Well done, height can take any value.
3. The length of tape in a cassette.: You said: continuous

Well done, length can take any value.
4. The number of tracks on a CD.: You said: discrete

Well done, you can only have a whole number of tracks.
5. The number of people at a party is given as 180, correct to the nearest 20. What's the lowest and highest possible number of people at the party? Lowest: You said: 170

Well done, 170 is the smallest number which rounds up to 180.
6. Highest: You said: 160

Hard luck! Did you remember that the number of people at a party is discrete?
7. The weight of a biscuit is given as 12.5g, correct to the nearest 0.5g. There are 12 biscuits in a packet. Between which limits does the weight of a packet lie? Lower limit: You said: 147

Well done, you remembered that weight is continuous, and calculated correctly.
8. Upper limit: You said: 153

Well done, you remembered that weight is continuous, and calculated correctly.

My Homeschool Mind