14.b Average

Question 1

What is the “weighted average formula”?

Answer 1

Question 2

Explain how you would set up the formula:

Answer 2

Question 3

How would you tackle this kind of question with percentages?

Answer 3

Question 4

Solve:

Answer 4

Range is from 53 to 62

Question 5

Solve:

Answer 5

Question 6

Solve:

Answer 6

Question 7

If the combined group has equal numbers of X and Y, the weighted average will the be the __________________

Answer 7

If the combined group has equal numbers of X and Y, the weighted average will the be the AVERAGE OF X AND Y

Question 8

If the combined group has more of X than Y, the weighted average will the be closer to __________________

Answer 8

If the combined group has more of X than Y, the weighted average will the be closer to X THAN Y

Question 9

Solve:

Answer 9

Question 10

Solve:

Answer 10

Question 11

Set up the equations:

Answer 11

Question 12

How would you tackle weighted averages with variables?

[ Ratio of A to B is 2 to 3 ]

Answer 12

Question 13

Solve:

Answer 13

Question 14

If a room is filled with x people, 1/4 of (x) are women, and 3/4 (x) are men, the average shoe size of women is 8 and for men its 12. Set up the equation to calculate the average.

Answer 14