Question

7 multiple choice 1 point which set of numbers is most precise? 2.2, 3.3, 4.4, 5.5 10.3, 14.3, 11.3, 8.2 7.81, 19.5, 13.85, 12.12 6.81, 6.7, 6.79, 6.72

Explanation:

Step1: Understand precision in numbers

Precision refers to the number of decimal places. More decimal places mean higher precision.

Step2: Analyze each set

• First set: \(2.2,3.3,4.4,5.5\) has one decimal place.
• Second set: \(10.3,14.3,11.3,8.2\) has one decimal place.
• Third set: \(7.81,19.5,13.85,12.12\). Here \(7.81\), \(13.85\), \(12.12\) have two decimal places and \(19.5\) has one. But overall, more numbers have two decimal places compared to other sets.
• Fourth set: \(6.81,6.7,6.79,6.72\). \(6.81\), \(6.79\), \(6.72\) have two decimal places and \(6.7\) has one. But when considering the whole set, the third set has a higher proportion of two - decimal - place numbers (three out of four) compared to the fourth set (three out of four but with more variation in the non - two - decimal - place number).

Answer:

The set \(7.81,19.5,13.85,12.12\) is most precise.