SOLUTION: Zaira is on time for her appointments 90% of time. She has 20 appointments scheduled next week. Describe how you can use a table of random numbers to determine how many appointme

Algebra ->  Probability-and-statistics -> SOLUTION: Zaira is on time for her appointments 90% of time. She has 20 appointments scheduled next week. Describe how you can use a table of random numbers to determine how many appointme      Log On


   

Question 1149384: Zaira is on time for her appointments 90% of time. She has 20 appointments scheduled next week. Describe how you can use a table of random numbers to determine how many appointments Zaira will be on time for.
Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
.

I don't know how to use a table of random numbers to determine how many appointments Zaira will be on time for next week.


But I can solve the problem by another way, much SIMPLER, writing a proportion


    x%2F20 = 90% = 0.9


and solving it for x, where   x is   "how many appointments Zaira will be on time for next week."


    x = 0.9*20 = 18.    ANSWER

Solved.