SOLUTION: A study determined that 7% of persons 65 to 74 have a certain symptom. A group of 19 persons age 65 to 74 get selected random . Find the probability that at least 2 persons have th

Algebra ->  Probability-and-statistics -> SOLUTION: A study determined that 7% of persons 65 to 74 have a certain symptom. A group of 19 persons age 65 to 74 get selected random . Find the probability that at least 2 persons have th      Log On

 

Hi,

p = .07, n = 19

Using TI ****(highly recommended for cumulative probabilities

P(x ≥ 2) = 1 – binomcdf(19, .07, 1)

Or

Using  

P(x ≥ 2)= 1 -P(0) - P(1)= 1 - .93^19 - 19(.07)^1(.93)^18