A newly institution question and answer inquired students to indicate what they ponder is the most important thing for a student to do in order for you to accomplish success. Out of the many replies, the one which that stood out was practice. Persons who are generally successful do not become successful by being born. They work hard and persistence their lives to succeeding. If you wish to obtain your goals, keep this in mind! right below some question and answer examples that you can easily benefit from to enriches your knowledge and gain insight that will assist you to sustain your school studies.

## Question:

Greg teaches an art class. The table below shows how many drawings his students hadsubmitted by last Friday. Greg calculates the mean absolute deviation (MAD) of the data.

Then, one student submits 25 additional drawings. Greg cannot remember whether the

drawings are Amy’s or Emily’s, but he thinks the MAD will increase no matter who submitted

the drawings. Is Greg correct? Use the drop-down menus to explain your reasoning.

## Answer:

The **MAD **of the new data set does **depend **on whether it was **Amy **or **Emily **who turned in the **additional drawings**. So, Greg is **incorrect **and this can be determined by **finding **the **mean absolute deviation **in each condition.

Given :

The table given shows how many drawings his students had submitted by last Friday.

**Mean absolute deviation **can determine by using the following formula:

where m(X) is the **average value **of the data set, n is the **number **of **data **values and is the **data values** in the set.

**m(X) = 31**

**MAD = 10**

Now, one student submits 25 additional drawings. If that **25 drawing **is **Amy’s **then **MAD **of the updated data is:

**m(X) = 36**

**MAD = 3.2**

Now, one student submits 25 additional drawings. If that **25 drawing **is **Emily’s **then **MAD **of the updated data is:

**MAD = 9.4**

The **MAD **of the new data set does **depend **on whether it was Amy or Emily who turned in the additional drawings. So, Greg is **incorrect**.

For more information, refer to the link given below;

They would possibly hopefully assist the student sort out the question by using the questions and answer examples. Then could actually make some sharing in a group discussion and also learning with the classmate that is related to the topic, so another student also have some enlightenment and still keeps up the school learning.