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Statistics and Probability Stratified Random Sampling

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2017/2018 Written for academic year
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Third Year / 9th Grade
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Statistics and Probability
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This is a presentation and study guide about Stratified Random Sampling.

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STRATIFIED RANDOM
SAMPLING

,STRATIFIED RANDOM SAMPLE
A Stratified Random Sample is a
population sample that requires the
population to be divided into
smaller groups, called “Strata”.
Random samples can be taken from
each stratum, or group.

, STRATIFIED RANDOM SAMPLING
• Type of probability sampling which selects
members of the sample proportionally from
each subpopulation or stratum.

• Used when the population is too large to
handle and is divided into subgroups (called
strata)

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  • statistics
  • probability
  • stratified random sampling

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