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A researcher measures the time (in seconds) it takes a sample of five participants to participate in a memory task. It took four of the

A researcher measures the time (in seconds) it takes a sample of five participants to participate in a memory task. It took four of the participants7,8,8, and9seconds. IfM=8,

then what must be the fifth time recorded?

__________sec

(Recall that the sum of the deviations of values from their mean is 0.)

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