Question 953177: How many places wilk round off your finsl answer? A. When measuring the number of questions students answered correctly on a test. B. When measuring what proportion of the total possible points students have earned in a course. C. When counting the numb3er of people having various blood types. D. When measuring the number of dollar bills possessed by each person in the group.
Answer by Theo(13342)   (Show Source):
You can put this solution on YOUR website! How many places will round off your final answer?
A. When measuring the number of questions students answered correctly on a test.
NEAREST INTEGER.
B. When measuring what proportion of the total possible points students have earned in a course.
AS A DECIMAL EQUIVALENT - 4 PLACES.
AS A PERCENT - 2 PLACES.
REMEMBER THAT DECIMAL = PERCENT DIVIDED BY 100 AND PERCENT = DECIMAL * 100.
C. When counting the number of people having various blood types.
NEAREST INTEGER.
D. When measuring the number of dollar bills possessed by each person in the group.
NEAREST INTEGER.
If your answer requires discrete units, such as number of people, then rounding to the nearest integer is desired.
Anything non-discrete, like a percent or a proportion, or a ratio, or a measurement of distance would be rounded to the requirements of the problem.
How accurate does your answer need to be.
If it's finding a landing spot on the moon, then many decimal places are required.
If figuring out the approximate number of something to the nearest hundred, then no decimal places are required.
|
|
|
