please help and make sure all the answers and work is right

Algebra
Tutor: None Selected Time limit: 1 Day

Mar 19th, 2015

Prime number 1 to 20:  2, 3, 5, 7, 11, 13, 17. 19

P(prime) = 8/20 = 0.4

P(not prime) = 1 - 0.4 = 0.6

Mar 19th, 2015

Did you know? You can earn $20 for every friend you invite to Studypool!
Click here to
Refer a Friend
...
Mar 19th, 2015
...
Mar 19th, 2015
Dec 9th, 2016
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer