If the formula [tex]\bar{x}=\frac{1}{n} \sum_{i=1}^n x_i[/tex] is used to find the mean of the following sample, what is the value of [tex]n[/tex]?

[tex]2, 63, 88, 10, 72, 99[/tex]

A. 6
B. 5
C. 8
D. 7



Answer :

To find the value of [tex]\( n \)[/tex] in the given sample, we need to count the number of elements in the sample provided. The sample given is:
[tex]\[ 2, 63, 88, 10, 72, 99 \][/tex]

Let's list out the elements and count them one by one:
1. [tex]\( 2 \)[/tex]
2. [tex]\( 63 \)[/tex]
3. [tex]\( 88 \)[/tex]
4. [tex]\( 10 \)[/tex]
5. [tex]\( 72 \)[/tex]
6. [tex]\( 99 \)[/tex]

Counting these elements, we have a total of 6 elements in the sample. Therefore, [tex]\( n = 6 \)[/tex].

So, the correct answer is:
A. 6