Data Collection and Organization in Statistics

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23 Terms

1

Interviews

Detailed insights via face-to-face or telephone methods.

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2

Questionnaires

Cost-effective surveys that may yield low responses.

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3

Experimental Method

Controlled studies establishing cause-and-effect relationships.

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4

Observational Study

Records real-time events, minimizing bias in data.

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5

Data Organization

Classifying and structuring data for usability.

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6

Graphs

Visual representations illustrating data relationships.

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7

Charts

Structured displays of data in various formats.

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8

Tables

Organized data in rows and columns for clarity.

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9

Pictures

Visual representations used to convey data meaning.

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10

Bar Graph

Visualizes independent values for comparison.

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11

Line Graph

Shows trends and changes over time.

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12

Cartesian Graph

Uses axes to illustrate numerical relationships.

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13

Statistics

Design, collection, and interpretation of data.

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14

Descriptive Statistics

Summarizes data using graphs and measures.

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15

Inferential Statistics

Predicts population characteristics from sample data.

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16

Mean

Average value of a dataset.

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17

Median

Middle value in ordered data.

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18

Mode

Most frequently occurring value in data.

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19

Range

Difference between highest and lowest values.

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20

Mean Deviation

Average of absolute differences from the mean.

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21

Variance

Mean of squared deviations from the mean.

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22

Standard Deviation

Average distance of data points from the mean.

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23

Sample Standard Deviation

Uses n-1 for accurate population variability estimation.

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