The ages of Ciara's five cousins are listed below. 12 16 9 16 15 1) Calculate the mean. 2) Fill in the table below: Fill in the differences of each data value from the mean, then the squared differences. (z - 7)* 12 16 16 15 %3D
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
Please all of them
![**Statistical Analysis of Ages**
The ages of Ciara's five cousins are listed below:
- Ages: 12, 16, 9, 16, 15
1) **Calculate the Mean**
\(\bar{x} = \) [Input box for mean]
2) **Fill in the Table Below:**
Fill in the differences of each data value from the mean, then square the differences.
\[
\begin{array}{|c|c|c|}
\hline
x & x - \bar{x} & (x - \bar{x})^2 \\
\hline
12 & & \\
\hline
16 & & \\
\hline
9 & & \\
\hline
16 & & \\
\hline
15 & & \\
\hline
& & \sum (x - \bar{x})^2 \\
\hline
\end{array}
\]
3) **Calculate the Population Standard Deviation (\(\sigma\))**
\[
\sigma = \sqrt{\frac{\sum (x - \bar{x})^2}{N}} = \text{[Input box]}
\]
*(Please round your answer to two decimal places)*
**Instructions:** Follow the steps to find the mean, calculate the deviations from the mean for each age, square those deviations, and then use the squared differences to calculate the population standard deviation.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5d201130-f4f7-4c89-8a7d-8eb0f7158013%2Fe8b1b891-e7a7-4c8c-b835-37ea4f45196e%2Fvw7jhds_processed.jpeg&w=3840&q=75)
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
