**Variable data and statistical questions :**

The question “How much does a typical cat weigh?” is an example of a statistical question. A statistical question is a question that has many different, or variable, answers.

**Part A : **

**Instruction : **

Decide whether each of the situations below could yield variable data.

**Question 1 :**

Your sister wants to know the typical weight for an adult cat.

**Answer : **Variable

**Question**** 2 :**

You want to know how tall your friend is.

**Answer : **Not variable

**Question 3 :**

You want to know how far your house is from school.

**Answer : **Not variable

**Question 4 :**

A car owner wants to know how much money people usually pay for a new tire.

**Answer : **Variable

**Question 5 :**

How many students were in line for lunch at the cafeteria today at 12:30 ?

**Answer :** Not variable

**Part B : **

**Question 6 : **

For which of the situations in part A can you write a statistical question ? Write questions for these situations.

**Answer : **

1 and 4;

1. How much does a typical adult cat weigh ?

4. How much does a tire usually cost ?

**Question 7 :**

Choose one of the questions you wrote in part B . How might you find answers to this question ? What units would you use for the answers ?

**Answer : **

Sample answers :

1. Weigh a sample of adult cats and find the mean or median weight in pounds.

4. Ask people who recently bought a tire how much they paid in dollars, and find the mean or median.

**Part C :**

**Question 8 :**

The town council members want to know how much recyclable trash a typical household in town generates each week.

Tell whether the situation could yield variable data. If possible, write a statistical question.

**Answer : **

Variable data

Sample answer :

How many pounds of recyclable trash does each household generate ?

**Question 9 :**

Describe how a statistical question yields an answer with variability. Give an example.

**Answer : **

A statistical question has many different, or variable answers. Sample example: How old are my friends’ pets ?

**Question 10 :**

An antique collector wants to know the age of a particular chair in a shop.

Determine whether the question is a statistical question. If it is a statistical question, identify the units for the answer.

**Answer : **

Not statistical

**Question 11 :**

How tall do the people in your immediate and extended family tend to be?

Determine whether the question is a statistical question. If it is a statistical question, identify the units for the answer.

**Answer : **

Statistical

Units : feet and inches or centimeters

**Question 12 :**

How tall is Sam ?

Determine whether the question is a statistical question. If it is a statistical question, identify the units for the answer.

**Answer : **

Not statistical

**Question 13 :**

How much did your classmates typically spend on music downloads last year ?

**Answer : **

Statistical

Units : dollars

After having gone through the stuff given above, we hope that the students would have understood "Variable data and statistical questions".

Apart from the stuff given above, if you want to know more about "Variable data and statistical questions", please click here

Apart from the stuff given in this section, if you need any other stuff in math, please use our google custom search here.

HTML Comment Box is loading comments...

**WORD PROBLEMS**

**HCF and LCM word problems**

**Word problems on simple equations **

**Word problems on linear equations **

**Word problems on quadratic equations**

**Area and perimeter word problems**

**Word problems on direct variation and inverse variation **

**Word problems on comparing rates**

**Converting customary units word problems **

**Converting metric units word problems**

**Word problems on simple interest**

**Word problems on compound interest**

**Word problems on types of angles **

**Complementary and supplementary angles word problems**

**Markup and markdown word problems **

**Word problems on mixed fractrions**

**One step equation word problems**

**Linear inequalities word problems**

**Ratio and proportion word problems**

**Word problems on sets and venn diagrams**

**Pythagorean theorem word problems**

**Percent of a number word problems**

**Word problems on constant speed**

**Word problems on average speed **

**Word problems on sum of the angles of a triangle is 180 degree**

**OTHER TOPICS **

**Time, speed and distance shortcuts**

**Ratio and proportion shortcuts**

**Domain and range of rational functions**

**Domain and range of rational functions with holes**

**Graphing rational functions with holes**

**Converting repeating decimals in to fractions**

**Decimal representation of rational numbers**

**Finding square root using long division**

**L.C.M method to solve time and work problems**

**Translating the word problems in to algebraic expressions**

**Remainder when 2 power 256 is divided by 17**

**Remainder when 17 power 23 is divided by 16**

**Sum of all three digit numbers divisible by 6**

**Sum of all three digit numbers divisible by 7**

**Sum of all three digit numbers divisible by 8**

**Sum of all three digit numbers formed using 1, 3, 4**

**Sum of all three four digit numbers formed with non zero digits**