Problem-Solving and Data AnalysisEasy–MediumPlausible range from an estimate with uncertainty
Problem-Solving and Data Analysis practice question
A poll of a random sample of voters estimates that 60% support a new park, give or take 4 percentage points. Which of the following ranges is plausible for the percentage of all voters who support the park?
- A. 56% to 64%Correct
- B. 60% to 64%
- C. 40% to 60%
- D. Exactly 60%
Answer: A. 56% to 64%
60 − 4 = 56 and 60 + 4 = 64.
Why the other answers are wrong
- B. 60% to 64%
- The uncertainty runs in both directions.
- C. 40% to 60%
- 40 to 60 is not centred on the estimate.
- D. Exactly 60%
- A sample cannot pin down the population figure exactly.
More Problem-Solving and Data Analysis questions
- Easy–Medium
A jacket originally priced at $80 is discounted by 25%. What is the sale price? - Easy–Medium
A bag contains 3 red, 5 blue, and 2 green marbles. If one marble is drawn at random, what is the probability i… - Easy–Medium
A recipe uses 2 cups of flour to make 3 servings. How many cups of flour are needed for 12 servings? - Easy–Medium
What is the median of the data set 4, 7, 7, 9, 13? - Easy–Medium
The ratio of dogs to cats at a shelter is 5 to 3. If there are 40 dogs, how many cats are there? - Easy–Medium
A printer produces 8 pages every 5 seconds. At this rate, how many pages does it produce in 1 minute?
Not affiliated with the College Board. SAT is a trademark of the College Board.