Question
Here are the math test scores of 10 randomly selected students from Class 1 and Class 2.
Math Test Scores of 10 Randomly Selected Students from Class 1 and Class 2
Class 1: 75 80 84 79 92 86 88 86 86 90
Class 2: 83 85 91 93 72 85 76 80 82 89
Find the mean score of each sample. Based on the mean, which class generally performed better on the math test? Express your answer as a decimal. Do not round your answer.
(2 points)
The mean score for Class 1 is
. The mean score for Class 2 is
. Based on the mean, Class
generally performed better on the math test.
Sorry, that’s only partially correct
Compute the mean by adding the data values for Class 1 and dividing the sum by the number of values.
Compute the mean by adding the data values for Class 1 and dividing the sum by the number of values.
Math Test Scores of 10 Randomly Selected Students from Class 1 and Class 2
Class 1: 75 80 84 79 92 86 88 86 86 90
Class 2: 83 85 91 93 72 85 76 80 82 89
Find the mean score of each sample. Based on the mean, which class generally performed better on the math test? Express your answer as a decimal. Do not round your answer.
(2 points)
The mean score for Class 1 is
. The mean score for Class 2 is
. Based on the mean, Class
generally performed better on the math test.
Sorry, that’s only partially correct
Compute the mean by adding the data values for Class 1 and dividing the sum by the number of values.
Compute the mean by adding the data values for Class 1 and dividing the sum by the number of values.
Answers
GPT-4o mini
To find the mean score of each class, we need to sum the scores for each class and then divide by the number of students (which is 10 in each case).
**Class 1 Scores:**
75, 80, 84, 79, 92, 86, 88, 86, 86, 90
1. Calculate the total score for Class 1:
\( 75 + 80 + 84 + 79 + 92 + 86 + 88 + 86 + 86 + 90 = 879 \)
2. Calculate the mean score for Class 1:
\( \text{Mean for Class 1} = \frac{879}{10} = 87.9 \)
**Class 2 Scores:**
83, 85, 91, 93, 72, 85, 76, 80, 82, 89
1. Calculate the total score for Class 2:
\( 83 + 85 + 91 + 93 + 72 + 85 + 76 + 80 + 82 + 89 = 885 \)
2. Calculate the mean score for Class 2:
\( \text{Mean for Class 2} = \frac{885}{10} = 88.5 \)
Now, summarizing the results:
- The mean score for Class 1 is **87.9**.
- The mean score for Class 2 is **88.5**.
- Based on the mean, Class **2** generally performed better on the math test.
So the final answers are:
The mean score for Class 1 is **87.9**. The mean score for Class 2 is **88.5**. Based on the mean, Class **2** generally performed better on the math test.
**Class 1 Scores:**
75, 80, 84, 79, 92, 86, 88, 86, 86, 90
1. Calculate the total score for Class 1:
\( 75 + 80 + 84 + 79 + 92 + 86 + 88 + 86 + 86 + 90 = 879 \)
2. Calculate the mean score for Class 1:
\( \text{Mean for Class 1} = \frac{879}{10} = 87.9 \)
**Class 2 Scores:**
83, 85, 91, 93, 72, 85, 76, 80, 82, 89
1. Calculate the total score for Class 2:
\( 83 + 85 + 91 + 93 + 72 + 85 + 76 + 80 + 82 + 89 = 885 \)
2. Calculate the mean score for Class 2:
\( \text{Mean for Class 2} = \frac{885}{10} = 88.5 \)
Now, summarizing the results:
- The mean score for Class 1 is **87.9**.
- The mean score for Class 2 is **88.5**.
- Based on the mean, Class **2** generally performed better on the math test.
So the final answers are:
The mean score for Class 1 is **87.9**. The mean score for Class 2 is **88.5**. Based on the mean, Class **2** generally performed better on the math test.