mdc6.JPG

mdc7.JPG The sum of the numbers in a set of data divided by the number of pieces of data. This is what we usually call "average." Also called the arithmetic mean.

mdc8.JPG The number in the middle of a set of data when the data are arranged in order. When there are two middle numbers, the median is their mean.

mdc9.JPG The number that occurs most frequently in a set of numbers.

  • Remember they have to be in numerical order.

Questions:
1. Find seven numbers with a mode of 8 and a median of 6.

2. Bill's history marks are: 72, 66, 65, 73, 71, 69, 68, 72. Find the mean, median, and mode.


8-41 md answers



mdc10.JPG

mdc11.JPG
A number that is the square of a whole number.

Question:
3. What is the square root of 26?

Click the link for an example:
Marygrace's Bubble Share


8-41 md answers



mdc12.JPG

mdc13.JPG A fraction or ratio in which the denominator is 100.

Questions:
4. Is taking 15% off a give item and then an additional 10% off the reduced price the same as taking 25% off the original prics? Why or why not?
- Solve in fractions.

5. Suppose you have 4 bananas that cost $7.00. How much does 16 bananas cost?
-
Solve in ratio tables.

8-41 md answers



Extra Links:
Marygrace's "BOB"
Marygrace's Growning Post
Marygrace's Scribe





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