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Understanding Standard Deviation and Data Analysis

Authored by Sophie Willson-Morris

Chemistry

1st - 5th Grade

Used 1+ times

Understanding Standard Deviation and Data Analysis
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a low standard deviation indicate about data?

Data points are inconsistent

Data points are widely spread

Data points are closely grouped

Data points are from different samples

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the symbol 's' represent in the standard deviation formula?

Sum of values

Sample mean

Standard deviation

Sample size

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do we use 'n-1' in the standard deviation formula for samples?

To adjust for population data

To correct for sample bias

Because it's easier to calculate

To use up all data points

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in manually calculating standard deviation?

Find the sum of squared differences

Subtract the mean from each data point

Calculate the mean

Square the differences

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you enter data into a calculator in stat mode?

Type all data at once

Enter each value followed by equals

Scan the data sheet

Upload data via USB

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the 'SX' button calculate in stat mode?

Mean of the data

Sum of all entries

Sample standard deviation

Population standard deviation

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do error bars on a graph represent?

Standard deviation from the mean

Mean and median values

Maximum and minimum values

Data outliers

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