Please help m 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:

86

90

4

Step-by-step 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

Population: The entire number of students present in town's high school.

Sample: Identical number of students across various categories of fresher's, senior students & juniors.

Population is the large set of the people who are present during the experiment. Sample is a smaller subset from the experiment. In this question, samples are the students who are either new joiners to the college, the senior students or the juniors. It will help Alan to come to a possible conclusion using the survey.