zyrihanna
Answered

Discover the answers to your questions at Westonci.ca, where experts share their knowledge and insights with you. Connect with professionals ready to provide precise answers to your questions on our comprehensive Q&A platform. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

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]?

Sample: 2, 63, 88, 10, 72, 99, 38

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

Sagot :

GinnyAnswer
To find the mean [tex]\(\bar{x}\)[/tex] of a sample using the formula [tex]\(\bar{x}=\frac{1}{n} \sum_{i=1}^n x_i\)[/tex], we need to determine the number of elements in the sample, which is represented by [tex]\(n\)[/tex].

Let’s identify each step required to find the sample size [tex]\(n\)[/tex]:

1. List the sample values: [tex]\(2, 63, 88, 10, 72, 99, 38\)[/tex].
2. Count the number of values in the sample.

[tex]\[ \begin{array}{c} 2, \ 63, \ 88, \ 10, \ 72, \ 99, \ 38 \end{array} \][/tex]

There are 7 values in the sample.

Thus, the value of [tex]\(n\)[/tex] is:

[tex]\[ n = 7 \][/tex]

Therefore, the correct answer is:

[tex]\[ \boxed{7} \][/tex]
We appreciate your time. Please come back anytime for the latest information and answers to your questions. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. Thank you for visiting Westonci.ca, your go-to source for reliable answers. Come back soon for more expert insights.