SOLUTION: It a recent study of college students indicated that 30% of all college students had at least one tattoo. A small private college decided to randomly and independently sample 15 of

Algebra ->  Probability-and-statistics -> SOLUTION: It a recent study of college students indicated that 30% of all college students had at least one tattoo. A small private college decided to randomly and independently sample 15 of      Log On


   

Question 1169552: It a recent study of college students indicated that 30% of all college students had at least one tattoo. A small private college decided to randomly and independently sample 15 of their students and ask if they have a tattoo. Use a binomial probability table to find the probability that exactly 5 of the students reported that they did have at least one tattoo.

0.515

0.207

0.722

0.218
Found 2 solutions by Boreal, ikleyn:
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
This is 15C5*0.3^5*0.7^10, and the answer from the table will be 0.206. The calculator and the formula on the left give the same answer (0.2061).
0.207 is the best choice.

Answer by ikleyn(52921) About Me  (Show Source):
You can put this solution on YOUR website!
.

You just have crystally clear instruction to "use a binomial probability table . . . ".

Follow this instruction LITERALLY and complete the assignment as instructed.


It is unclear to me _WHAT_ do you want from the tutors in this case ?

Do you expect and do you want the tutors will make your job instead of you ?


Do not waste your time . . .


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Comment from student :   Oh my god, are you serious? Are you here to help people, or to find some stupid reasons?



My responce :   First,  I am  ABSOLUTELY  SERIOUS.

Second,  I am here to teach students - - - - - - EXACTLY  in accordance with the destination,  goals,  and a profile of this forum.


Where did you see  "stupid reasons"  in my post ?


Please clarify.