# Averages And Range Homework Market

**statistics**such as the mean, median and mode to obtain information about a population from our sample set of observed values.

Mean

The **mean **(or average) of a set of data values is the sum of all of the data values divided by the number of data values. That is:

Example 1

The marks of seven students in a mathematics test with a maximum possible mark of 20 are given below:

15 13 18 16 14 17 12

Find the mean of this set of data values.

##### Solution:

So, the mean mark is 15.

Symbolically, we can set out the solution as follows:

So, the mean mark is 15.

Median

The **median**of a set of data values is the middle value of the data set when it has been arranged in ascending order. That is, from the smallest value to the highest value.

Example 2

The marks of nine students in a geography test that had a maximum possible mark of 50 are given below:

47 35 37 32 38 39 36 34 35

Find the median of this set of data values.

##### Solution:

Arrange the data values in order from the lowest value to the highest value:

32 34 35 35 36 37 38 39 47

The fifth data value, 36, is the middle value in this arrangement.

Note:

In general:

If the number of values in the data set is even, then the **median **is the average of the two middle values.

Example 3

Find the median of the following data set:

12 18 16 21 10 13 17 19

##### Solution:

Arrange the data values in order from the lowest value to the highest value:

10 12 13 16 17 18 19 21

The number of values in the data set is 8, which is even. So, the median is the average of the two middle values.

Alternative way:

There are 8 values in the data set.

The fourth and fifth scores, 16 and 17, are in the middle. That is, there is no one middle value.

Note:

- Half of the values in the data set lie below the median and half lie above the median.
- The median is the most commonly quoted figure used to measure property prices. The use of the median avoids the problem of the mean property price which is affected by a few expensive properties that are not representative of the general property market.

Mode

The **mode**of a set of data values is the value(s) that occurs most often.

The mode has applications in printing. For example, it is important to print more of the most popular books; because printing different books in equal numbers would cause a shortage of some books and an oversupply of others.

Likewise, the mode has applications in manufacturing. For example, it is important to manufacture more of the most popular shoes; because manufacturing different shoes in equal numbers would cause a shortage of some shoes and an oversupply of others.

Example 4

Find the mode of the following data set:

48 44 48 45 42 49 48

##### Solution:

The mode is 48 since it occurs most often.

Note:

- It is possible for a set of data values to have more than one mode.
- If there are two data values that occur most frequently, we say that the set of data values is
**bimodal**. - If there is no data value or data values that occur most frequently, we say that the set of data values has no mode.

Analysing Data

The mean, median and mode of a data set are collectively known as **measures of central tendency** as these three measures focus on where the data is centred or clustered. To analyse data using the mean, median and mode, we need to use the most appropriate measure of central tendency. The following points should be remembered:

- The mean is useful for predicting future results when there are no extreme values in the data set. However, the impact of extreme values on the mean may be important and should be considered. E.g. The impact of a stock market crash on average investment returns.
- The median may be more useful than the mean when there are extreme values in the data set as it is not affected by the extreme values.
- The mode is useful when the most common item, characteristic or value of a data set is required.

Key Terms

statistics, mean, average, median, mode, measures of central tendency

PROFESSIONAL Homework WRITERS - How I Do My Homework

Have you been wondering how I gain those good grades whenever the academic session comes to an end? This is down to the method I employ whenever it is time to do my homework. These methods are also employed by the online firms to come up with great papers. It boils down to setting goals and pursuing them. Dividing my task into different small units helps me a lot.

By so doing, I will be able to do my homework bit by bit till the entire stuff is done. This is also possible because I do not procrastinate once I have one on my table. It's either I start doing it immediately or I send it to people that do homework for me online. The idea is to take as many breaks as possible, so as to always come back rejuvenated. Whenever I have this task, I think about the consequences of not writing it.

By so doing, I am motivated to take action. I also think about the benefits of doing a great one and gaining the best grades. After considering all these, I will go in search of people who will do my homework for money if I feel I cannot produce the best paper. If I feel I can do the work, I get to a serene place that is bereft of all distractions and think about the best way to do my homework.

### The best approach to adopt to do my homework

The method I employ to do my homework online can work for everybody. But this is only when you are sure that you have the skills, the time, the information, and details of the topic you are writing about. You must also know the format and writing style to use. If you are not sure about these, just hire people that do homework assignments online. If you would want to do it, you should start by doing extensive reading about the subject of the task.

Since your homework paper may be in a vast area, you have to concentrate on reading summaries of different chapters, their captions and charts. Also, read other places where information is easily revealed. When you are through with the reading part, map out the raw answers to each of the essay questions. This is to be done way before you insert the details. When you do these, leave some lines that you will come and fill in with details later.

For you to come out with a great piece, you need to discover those things that motivate you and stick with them. You need a whole lot of motivation to come up with a good outcome. On another level, you can also look for a homework writing partner. This should also be part of the motivation. When you know that someone besides you is undergoing the same challenge and stomaching it, you will be inspired.

### What you will gain from do my homework service

When you employ us to offer homework services to you, you will be enjoying a writing company that has been offering cpm homework help online for more than 10 years. This is a firm that will allow you talk to a real human being and not chat with a robot online. We only employ Native American and British online homework writers, and you will get the best from them.

We will take care of all your needs;

We offer cheap and affordable do my homework services;

- When you contact us, we will offer you a free instant online estimate.

## 0 thoughts on “Averages And Range Homework Market”