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- Collaborative statistics
- Sampling and data
- Summary
This module provides an outline/review of key concepts related to statistical sampling and data.
Statistics
- Deals with the collection, analysis, interpretation, and presentation of data
Probability
- Mathematical tool used to study randomness
Key terms
- Population
- Parameter
- Sample
- Statistic
- Variable
- Data
Types of data
- Quantitative Data (a number)
- Discrete (You count it.)
- Continuous (You measure it.)
- Qualitative Data (a category, words)
Sampling
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With Replacement : A member of the population may be chosen more than once
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Without Replacement : A member of the population may be chosen only once
Random sampling
- Each member of the population has an equal chance of being selected
Sampling methods
- Random
- Simple random sample
- Stratified sample
- Cluster sample
- Systematic sample
- Not Random
Frequency (freq. or f)
- The number of times an answer occurs
Relative frequency (rel. freq. or rf)
- The proportion of times an answer occurs
- Can be interpreted as a fraction, decimal, or percent
Cumulative relative frequencies (cum. rel. freq. or cum rf)
- An accumulation of the previous relative frequencies
Questions & Answers
how did the oxygen help a human being
how did the nutrition help the plants
Biology is a branch of Natural science which deals/About living Organism.
evolutionary history and relationship of an organism or group of organisms
AI-Robot
cell is the smallest unit of the humanity biologically
Abraham
HOW CAN MAN ORGAN FUNCTION
the diagram of the digestive system
allimentary cannel
Ogenrwot
They formed in two ways first when one sperm and one egg are splited by mitosis or two sperm and two eggs join together
Oluwatobi
Genetics is the study of heredity
Misack
how does twins formed?
Misack
discuss biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles
the study of living organisms and their interactions with one another and their environment.
Wine
discuss the biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles in an essay form
list any five characteristics of the blood cells
Shaker
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Source:
OpenStax, Collaborative statistics. OpenStax CNX. Jul 03, 2012 Download for free at http://cnx.org/content/col10522/1.40
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