In a blood testing procedure, blood samples from 5 people are ...

[kfurse]

In a blood testing procedure, blood samples from 5 people are combined into one mixture. The mixture will only test negative if all the individual samples are negative.
 
  If the probability that an individual sample tests positive is 0.09, what is the probability that the mixture will test positive?
  A) 0.00810 B) 0.00000590 C) 0.376 D) 1.00

Question 2

If a distribution is normal with  = 75 and  = 15, then what proportion of the scores will fall between 45 and 105?
 
  a. .3413
  b. .6826
  c. .9544
  d. .9974

[milbourne11]

Answer to Question 1

C

Answer to Question 2

C

[kfurse]

Thanks for the timely response, appreciate it

[raenoj]

Wow, this really help