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Quiz Discussion

Title: Measures of variation- Sample Standard deviation

Grade: 9-a Lesson: S2-L3

Explanation: Let us discuss a few questions on this topic and review the answers to every question.

Quiz: Discussion in Class

Problem Id	Problem	Options
Steps 1	Sample of 3 pens drawn from the box.Find the standard deviation 12,24,41	A) 14.57 B) 16.89 C) 12.78 D) 19.87
Steps 2	There are 40 students in class and 4 students were picked,there weights were recorded as 12,16,19,10.Find the standard deviation	A) 1.3 B) 4.03 C) 1.9 D) 7
Steps 3	Allen brought 10 dolls and 5 were selected.Find the standard deviation on the price of dolls $2.5,$5.3,$1.2,$0.6,$0.8	A) 2.6 B) 1.94 C) 1.06 D) 2.40
Steps 4	A sample of 3 rice bags of 50,25,100 weights are drawn from the room .Find the standard deviation.	A) 44 B) 19.6 C) 37.27 D) 30.45
Steps 5	6 tires with 9,5,6,1,7,2 labels are picked for testing from manufacturer to find the standard deviation.	A) 1.3 B) 9.03 C) 2.90 D) 3.03

Problem Id

Problem

Options

Steps 1

Sample of 3 pens drawn from the box.Find the standard deviation
12,24,41

A) 14.57
B) 16.89
C) 12.78
D) 19.87

There are 40 students in class and 4 students were picked,there weights were recorded as 12,16,19,10.Find the standard deviation

A) 1.3
B) 4.03
C) 1.9
D) 7

Allen brought 10 dolls and 5 were selected.Find the standard deviation on the price of dolls
$2.5,$5.3,$1.2,$0.6,$0.8

A) 2.6
B) 1.94
C) 1.06
D) 2.40

A sample of 3 rice bags of 50,25,100 weights are drawn from the room .Find the standard deviation.

A) 44
B) 19.6
C) 37.27
D) 30.45

6 tires with 9,5,6,1,7,2 labels are picked for testing from manufacturer to find the standard deviation.

A) 1.3
B) 9.03
C) 2.90
D) 3.03