Refer to our Texas Go Math Grade 7 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 7 Module 12 Answer Key Random Samples and Populations.

**Texas Go Math Grade 7 Module 12 Answer Key Random Samples and Populations**

**Texas Go Math Grade 7 Module 12 Are You Ready? Answer Key**

Complete these exercises to review skills you will need for this module.

**Write each fraction as a decimal and a percent.**

Question 1.

\(\frac{1}{2}\)

Answer:

0.5

**Go Math Grade 7 Answer Key Pdf Module 12 Question 2.**

\(\frac{3}{4}\)

Answer:

0.75

Question 3.

\(\frac{2}{5}\)

Answer:

0.4

Question 4.

\(\frac{7}{10}\)

Answer:

0.7

**Find the range of the data.**

Question 5.

52, 48, 57, 47, 49, 60, 59, 51 ____

Answer:

13

Order the data from the least to greatest.

47, 48, 49, 51, 52, 57, 59, 60

The range if the difference between the greatest and the least data values.

The range = 60 – 47 = 13

Question 6.

5, 9, 13, 6, 4, 5, 8, 12, 12, 6 ______

Answer:

9

Order the data from the least to the greatest.

4, 5, 5, 6, 6, 8, 9, 12, 12, 13

The range is the difference between the greatest and the least data values.

The range = 13 – 4 = 9

**Texas Go Math Grade 7 Module 12 Test Answers Question 7.**

97, 106, 99, 97, 115, 95, 108, 100 ___

Answer:

20

Order the data from the least to the greatest.

95, 97, 97, 99, 100, 106, 108, 115

The range if the difference between the greatest and the least data values.

The range = 115 – 95 = 20

Question 8.

27, 13, 35, 19, 71, 12, 66, 47, 39 ___

Answer:

59

Order the data from the least to greatest.

12, 13, 19, 27, 35, 29, 47, 66, 71

The range if the difference between the greatest and the least data values.

The range = 71 – 12 = 59

**Find the mean of each set of data.**

Question 9.

3, 5, 7, 3, 6, 4, 8, 6, 9, 5 ______

Answer:

5.6

mean = \(\frac{3+5+7+3+6+4+8+6+9+5}{10}\)

= \(\frac{56}{10}\)

= 5.6

**Texas Go Math Grade 7 Solutions Module 12 Answers Question 10.**

8.1, 9.4, 11.3, 6.7, 6.2, 7.5

Answer:

8.2

mean = \(\frac{8.1+9.4+11.3+6.7+6.2+7.5}{6}\)

= \(\frac{49.2}{6}\)

= 8.2

**Texas Go Math Grade 7 Module 12 Reading Start-Up Answer Key**

**Visualize Vocabulary**

**Use the âœ“ words to complete the right column of the chart.**

**Understand Vocabulary**

**Complete each sentence, using the preview words.**

Question 1.

An entire group of objects, individuals, or events is a ______

Answer:

A population

**Texas Go Math Grade 7 Module 12 Answer Key Question 2.**

A _____ is part of the population chosen to represent the entire group.

Answer:

A sample

Question 3.

A sample that does not accurately represent the population is a ___.

Answer:

A biased sample