This topic focuses on calculating the mean of a number set after altering one of its elements. It includes problems where a specific number in a list is changed to achieve a new, specified average. These adjustments test understanding of how changing one element influences the overall average, a concept fundamental in statistics. The problems provide multiple choices for what that one number could be changed to in order to reach the desired mean, enhancing problem-solving and analytical skills.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
Practice:
Mean with Value Changed
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
What can the indicated number can be changed to for these numbers to have the given mean
7, 3, 8
Change a 3 to change the mean to 9
Statistics - Mean with Value Changed Worksheet
| Math worksheet on 'Statistics - Mean with Value Changed (Level 2)'. Part of a broader unit on 'Probability and Statistics - Mean, Median, and Mode - Advanced' Learn online: app.mobius.academy/math/units/probability_and_statistics_mean_median_mode_advanced/ |
| 0, 0, 15 Change a 15 to change the mean to 4 |
| What can the indicated number can be changed to for these numbers to have the given mean |
| 12 |
| 7 |
| 15 |
| 16 |
| 6 |
| 13 |
| 1, 7, 10 Change a 10 to change the mean to 9 |
| What can the indicated number can be changed to for these numbers to have the given mean |
| 19 |
| 16 |
| 21 |
| 14 |
| 15 |
| 13 |
| 6, 5, 7 Change a 5 to change the mean to 5 |
| What can the indicated number can be changed to for these numbers to have the given mean |
| 5 |
| 2 |
| 1 |
| 7 |
| 4 |
| 0 |
| 1, 0, 17 Change a 1 to change the mean to 7 |
| What can the indicated number can be changed to for these numbers to have the given mean |
| 9 |
| 1 |
| 4 |
| 6 |
| 5 |
| 7 |
| 4, 2, 15 Change a 15 to change the mean to 9 |
| What can the indicated number can be changed to for these numbers to have the given mean |
| 25 |
| 26 |
| 21 |
| 24 |
| 19 |
| 20 |
| 4, 11, 6 Change a 4 to change the mean to 6 |
| What can the indicated number can be changed to for these numbers to have the given mean |
| 0 |
| 4 |
| 2 |
| 5 |
| 1 |
| 6 |
| 10, 2, 6 Change a 10 to change the mean to 8 |
| What can the indicated number can be changed to for these numbers to have the given mean |
| 12 |
| 13 |
| 15 |
| 10 |
| 17 |
| 16 |