Step-3

Title: Karl pearson’s coefficient of skewness

Grade: 9-a Lesson: S2-L7

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

Step Type Explanation Answer

1

Problem

Karl Pearson’s coefficient of skewness is 1.28, its mean is 164 and mode 100, then find the standard deviation.

2

Hint

Mode

100

3

Clue

Mean

164

4

Clue

Skewness

1.28

5

Step

Skewness

sk = \$(Mean - Mode) / (sd)\$

6

Step

Simplification

1.28 = \$(164 - 100) / (sd)\$

7

Step

Simplification

sd = \$64 / 1.28\$

8

Step

After simplification we get

50

9

Answer

C

Tutor: Questions

Seq Type Question Audio

1

Problem

What did you learn from this problem?

2

Clue

What did you learn from the clues?

3

Hint

What did you learn from the Hints?

4

Step

What did you learn from the Steps?

5

Step

How can we improve the Steps?


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