Find the mean of the values: 1,9,7,3,5,5,6,4,2,8,
A. 3
B. 4
C. 5
D.6

Options

A. D
B. C
C. B
D. A

Answer

To find the mean of the values: 1, 9, 7, 3, 5, 5, 6, 4, 2, 8, we can follow these steps:

### Step 1: List the values
The values we need to find the mean for are:
1, 9, 7, 3, 5, 5, 6, 4, 2, 8

### Step 2: Calculate the sum of the values
Now, we will add all the values together:
\[ 1 + 9 + 7 + 3 + 5 + 5 + 6 + 4 + 2 + 8 \]

Calculating this step by step:
- \( 1 + 9 = 10 \)
- \( 10 + 7 = 17 \)
- \( 17 + 3 = 20 \)
- \( 20 + 5 = 25 \)
- \( 25 + 5 = 30 \)
- \( 30 + 6 = 36 \)
- \( 36 + 4 = 40 \)
- \( 40 + 2 = 42 \)
- \( 42 + 8 = 50 \)

So, the total sum is:
\[ 50 \]

### Step 3: Count the number of values
Next, we count how many values there are:
There are 10 values in total.

### Step 4: Calculate the mean
Now, we can calculate the mean using the formula:
\[ \text{Mean} = \frac{\text{Sum of values}}{\text{Number of values}} \]
Substituting the values we found:
\[ \text{Mean} = \frac{50}{10} = 5 \]

### Step 5: Conclusion
The mean of the values is:
\[ 5 \]

Thus, the correct answer is option C: 5.

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