What is the purpose of a scatterplot?

What will be an ideal response?


Ans: The shape of the plotted data points on a scatterplot or scattergram can indicate if the relationship between the variables is positive (direct), negative (indirect), if there is no relationship, or if the relationship is curvilinear.

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It is easier to converse with quiet children than with the more talkative ones

a. True b. False Indicate whether the statement is true or false

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The ability to receive and understand a message is called

a. fluency. b. expressive language. c. receptive language. d. communication.

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A measure of the match between the information on a test and the information taught in a lesson is referred to as:

a) reliability. b) convergent evidence of validity. c) content evidence of validity. d) predictive evidence of validity.

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One problem in using normal distributions is that ______.

a. how you interpret a score depends on how a variable is measured b. the sum of deviations from the mean is always equal to zero c. they’re based on a small number of scores d. the use of the word ‘normal’ is seen as politically incorrect

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