Concept explainers
Washing Hands Based on results from a Bradley Corporation poll, assume that 70% of adults always wash their hands after using a public restroom.
a. Find the
b. Find the probability that among 8 randomly selected adults, at least 7 always wash their hands after using a public restroom.
c. For groups of 8 randomly selected adults, find the
d. If 8 adults are randomly selected and it is found that exactly 1 of them washes hands after using a public restroom, is that a significantly low number?
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ELEMENTARY STATS. 18 WEEK ACCESS CODE
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