STATISTICS (SUMMER BREAK TRAINING)

Which graph represents data that has a correlation coefficient close to -1?

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• 
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Estimate the correlation coefficient for this scatterplot.

• r = 1

• r = -1

• r = -0.9

• r = 0.9

What type of correlation does this scatter plot show?

• NEGATIVE

• POSITIVE

• NEGLIGIBLE

• CONSTANT

 A perfect negative correlation has a correlation coefficient of ____. 

• 0

• 1

• -0.99

• -1

Describe the strength of correlation if r = 0.61.

• weak positive correlation

• moderately positive correlation

•  strong positive correlation

• none of the above

Identify the type of sampling technique.

"A researcher is doing research on the student's reaction to the newly implemented curriculum in mathematics and interviewed every 10th student entering the school gate."

• Simple Random Sampling

• Systematic Sampling

• Stratified Sampling

• Cluster Sampling

True/False

"The systematic sampling technique is the most basic type of sampling technique."

• TRUE

• FALSE

What sampling technique will be used if a researcher wants to know the experience of the board exam takers during the time of the pandemic?

• Convenience

• Quota

• Snowball

• Purposive

This type of sampling procedure gives equal chances to the members of the population to be part of the sample.

• Probability Sampling

• Non-Probability Sampling

• Random Sampling

• Non-Random Sampling

Which of the following is a type of non-probability sample?

• Cluster

• Simple Random

•  Judgment

• Systematic