Question

Derrick needs to figure out how he’s doing on his test scores so far this year. You can help by calculating the mean and the median to get an overall picture of his scores. Below are all of his scores: 25, 40, 68, 85, 95, 98, 70, 78, 85, 100 What is Derrick’s mean test score so far? What is Derrick’s median test score so far? Which gives a better picture of his scores?

Answer 1

Step-by-step explanation:

Given Derrick needs to figure out how he’s doing on his test scores so far this year. You can help by calculating the mean and the median  to get an overall picture of his scores. Below are all of his scores: 25, 40, 68, 85, 95, 98, 70, 78, 85, 100 What is Derrick’s mean test score so far? What is Derrick’s median test score so far? Which gives a better picture of his scores?

• Given we need to calculate the mean and the median for the given data.    
• So now the numbers are given and we need to find the average of the given numbers.
• Mean = sum of all observations / total number of observations
• So we get 25 + 40 + 68 + 85 + 95 + 98 + 70 + 78 + 85 + 100 / 10
•                                                                        = 744 / 10
•                                                                       = 74.4  
• So Derrick’s mean test score will be 74.4
• Now for the Median we need to arrange the numbers in the ascending order. So it will be
• 25, 40, 68, 70, 78, 85, 85, 95, 98, 100
• Since  there are 10 numbers and 10 is an even number the middle terms will be 78 + 85 / 2 = 81.5
• So Derrick’s median test score will be 81.5
• So the median (81.5) gives a better picture of his scores.

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https://brainly.in/question/8576832

Answer 2

Answer:

i put 74.4 81.5 and median

Step-by-step explanation:

i got it right