A researcher measures the number of tasks completed by participants during a 5-min multitasking session. If the number of tasks completed is distributed normally as 6.3 ± 1.0 (M ± SD) tasks, then what is the probability that participants completed less than eight tasks?
A. .0446
B. .9554
C. .4554
D. The probability is not listed in the unit normal table.
Ans: B
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