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Based on a​ poll, among adults who

regret getting​ tattoos, 25​% say that they were too young when they got their tattoos. Assume that eight adults who regret getting tattoos are randomly​ selected, and find the indicated probability. Complete parts​ (a) through​ (d) below.


a. Find the probability that none of the selected adults say that they were too young to get tattoos.

​(Round to four decimal places as​ needed.)


b. Find the probability that exactly one of the selected adults says that he or she was too young to get tattoos.

​(Round to four decimal places as​ needed.)


c. Find the probability that the number of selected adults saying they were too young is 0 or 1.

​(Round to four decimal places as​ needed.)


d. If we randomly select eight eight ​adults, is 1 a significantly low number who say that they were too young to get​ tattoos?

 No,

Yes,

because the probability that

 

exactly 1

at least 1

less than 1

at most 1

more than 1


 of the selected adults say that they were too young is

 

greater than

equal to

less than

0.05.

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