Ratio of classes A, B, C = 4 : 6 : 5, respectively
4 + 6 + 5 = 15
So, class A represents 4/15 of the TOTAL population
Class B represents 6/15 of the TOTAL population
Class C represents 5/15 of the TOTAL population
So, weighted average of 3 groups combined = (4/15)(65) + (6/15)(80) + (5/15)(77)
= 260/15 + 480/15 + 385/15
= 1125/15
= 75
Answer: B
Answer:
no
Step-by-step explanation:
Answer:
-14
Step-by-step explanation:
Answer:
80%
Step-by-step explanation:
4000 / 5000 * 100 = 80%
Answer: .17
To the nearest hundredth is two spaces to the right of the decimal.
To round find the number to the right of the “rounding” number and see if it is 5 or above 5.
Example: 0.57 it is above 5 so newest hundredth it 0.6
