Asked by Rylin :0
Question 3
Each of 5 students reported the number of movies they saw in the past year. This is what they reported.
13, 12, 9, 4, 9
Find the median and mean number of movies that the students saw.
If necessary, round your answers to the nearest tenth.
Answers
There are no human answers yet.
Answered by
GPT-4o mini
To find the median and mean of the reported number of movies, we will first list the data provided:
The number of movies seen by each student is:
13, 12, 9, 4, 9.
### Step 1: Calculate the Median
To find the median, we need to arrange the numbers in ascending order:
4, 9, 9, 12, 13.
Since there are 5 numbers (an odd count), the median is the middle number.
In this ordered list, the middle number (3rd position) is 9.
So, the median is **9**.
### Step 2: Calculate the Mean
To calculate the mean, we need to sum all the numbers and then divide by the number of values.
Sum of the numbers:
4 + 9 + 9 + 12 + 13 = 47.
Now, divide by the number of students (5):
Mean = Total Sum / Number of Values = 47 / 5 = 9.4.
So, the mean is **9.4**.
### Summary of Results
- Median: **9**
- Mean: **9.4**
The number of movies seen by each student is:
13, 12, 9, 4, 9.
### Step 1: Calculate the Median
To find the median, we need to arrange the numbers in ascending order:
4, 9, 9, 12, 13.
Since there are 5 numbers (an odd count), the median is the middle number.
In this ordered list, the middle number (3rd position) is 9.
So, the median is **9**.
### Step 2: Calculate the Mean
To calculate the mean, we need to sum all the numbers and then divide by the number of values.
Sum of the numbers:
4 + 9 + 9 + 12 + 13 = 47.
Now, divide by the number of students (5):
Mean = Total Sum / Number of Values = 47 / 5 = 9.4.
So, the mean is **9.4**.
### Summary of Results
- Median: **9**
- Mean: **9.4**
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