SOLUTION: Suppose that 3 out of 4 dentists recommend SparkleSmile toothpaste. (a) If 10 dentists are randomly selected, find the probability that less than eight would recommend Spark

Algebra ->  Probability-and-statistics -> SOLUTION: Suppose that 3 out of 4 dentists recommend SparkleSmile toothpaste. (a) If 10 dentists are randomly selected, find the probability that less than eight would recommend Spark      Log On


   

Question 1073688: Suppose that 3 out of 4 dentists recommend SparkleSmile toothpaste.
(a) If 10 dentists are randomly selected, find the probability that less than eight would recommend SparkleSmile.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Suppose that 3 out of 4 dentists recommend SparkleSmile toothpaste.
(a) If 10 dentists are randomly selected, find the probability that less than eight would recommend SparkleSmile.
Binomial Problem with p = 3/4 and n = 10
P(0<= x <=7) = binomcdf(10,3/4,7) = 0.4744
------------
Cheers,
Stan H.
------------