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QUESTION
On an immediate memory test, 10-year-old children can correctly recall an average of=7 digits. The distribution of recall scores is normal with=2.
On an immediate memory test, 10-year-old children can correctly recall an average of μ=7 digits. The distribution of recall scores is normal with σ=2.
a. What is the probability of randomly selecting a child with a recall score less than 6?
b. What is the probability of randomly selecting a sample of n=4 children whose
average recall score is less than 6?
