Step-4

Title: Measures of variation-Range

Grade: 9-a Lesson: S1-L7

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step Type Explanation Answer

1

Problem

Find the range from marks of students in Mathematics 51,54,51,52,49,94,91,93,92,91

2

Step

Arrange the numbers in ascending order

49,51,51,52,54,91,91,92,93,94

3

Formula:

\$ "Range" \$ = \$"highest number-lowest number"\$

4

Step

Substitute all the above values and solve

\$94-49\$ = 45

5

Answer

D = 45

Tutor: Questions

Seq Type Question Audio

1

Problem

What did you learn from this problem?

2

Clue

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3

Hint

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4

Step

What did you learn from the Steps?

5

Step

How can we improve the Steps?


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