Assume that 15​%of people are​ left-handed. Suppose 10 people are selected at random. Answer each question about​ right-handers below. a) Find the mean and standard deviation of the number of​ right-handers in the group.   μ= ​right-handers σ=  right-handers ​(Round to two decimal places as​ needed.) ​b) What's the probability that​ they're not all​ right-handed?     ​(Round to three decimal places as​ needed.) ​c) What's the probability that there are no more than 8 righties?   ​(Round to three decimal places as​ needed.) ​d) What's the probability that there are exactly 5 of​ each?   ​(Round to five decimal places as​ needed.) ​e) What's the probability that the majority is​ right-handed?   ​(Round to three decimal places as​ needed.)

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Assume that 15​%of people are​ left-handed. Suppose 10
people are selected at random. Answer each question about​ right-handers below.
a) Find the mean and standard deviation of the number of​ right-handers in the group.
 
μ= ​right-handers
σ=  right-handers ​(Round to two decimal places as​ needed.)
​b) What's the probability that​ they're not all​ right-handed?
 
 
​(Round to three decimal places as​ needed.)
​c) What's the probability that there are no more than
8 righties?
 
​(Round to three decimal places as​ needed.)
​d) What's the probability that there are exactly
5 of​ each?
 
​(Round to five decimal places as​ needed.)
​e) What's the probability that the majority is​ right-handed?
 
​(Round to three decimal places as​ needed.)
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