Grouping of fifteen people

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Approximately 10% of all people are left-handed ("11 little-known facts," 2013). Consider a grouping of fifteen people.

a.) State the random variable.

b.) Argue that this is a binomial experiment. Find the probability that

c.) None are left-handed.

d.) Seven are left-handed.

e.) At least two are left-handed.

f.) At most three are left-handed.

g.) At least seven are left-handed.

h.) Seven of the last 15 US Presidents are left-handed. Is this unusual? What does that tell you?

Reference no: EM132844292

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