Question

Please help meeeee I need help Jason's science test scores are 70, 80, 85, 95, and 100. The teacher will remove the

lowest test score before calculating Jason's grade. What is the difference between
Jason's mean test score before the lowest score is removed and his mean test score
after the lowest score is removed?
Step 1: Jason's mean test score BEFORE removing lowest score:
Step 2: Jason's mean test score AFTER removing lowest score:
Step 3: Difference in scores:

Answer 1

86

90

4

Explanation:

Step 1: Jason's mean test score BEFORE removing lowest score:

mean = (70 + 80 + 85 + 95 + 100)/5 = 430/5 = 86

Step 2: Jason's mean test score AFTER removing lowest score:

mean = (80 + 85 + 95 + 100)/4 = 430/5 = 90

Step 3: Difference in scores:

90 - 86 = 4