**Problem Description**The mean score on a set of 26 tests is 88. Suppose two more students take the test and score 63 and 56. What is the new mean?**Solution**To find the new mean, follow these steps:1. **Calculate the total score of the original 26 tests:** - Mean = Total score / Number of tests - Total score = Mean × Number of tests = 88 × 26 = 22882. **Add the scores of the two new students to the total score:** - New total score = 2288 + 63 + 56 = 24073. **Calculate the new mean:** - New mean = New total score / New number of tests = 2407 / 28 ≈ 86.0 (Round to the nearest tenth.)**Answer**The new mean is approximately 86.0.

Sample mean x̄=88, n=26, X27=63 and X28=56

Answered: The mean score on a set of 26 tests is…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The mean score on a set of 26 tests is 88. Suppose two more students take the test and score 63 and 56. What is the new mean? The new mean is (Round to the nearest tenth.)