Question

********HELP PLEASE**************

A local eye clinic has two doctors. Dr. Kutallot recommends glass 60% of the time and corrective surgery 40% percent of the time. Dr. Lenzie recommends glasses 70% of the time and 30% of the time. 60% of the patients are treated by Dr. Lenzie. No patients are treated by both doctors. If a patient is selected random, what is the probability that surgery is recommended?
18%
34%
35%
58%
70%

Answer 1

YES

Answer 2

how did you get 0.4 and 0.3

Answer 3

got it .. answer is 34%.

Answer 4

\[(40×0.4)+(60×0.3)=34\]

Answer 5

how did you get the 0.4 and 0.3

Answer 6

can you help with one more please

Answer 7

if performances on AP test are independent and the probability of passing an AP is 0.3 then the probability of passing three AP test is
0.027
0.090
0.300
0.900
0.333

Answer 8

lets say there are 100 patients. out of which 40 patients go to Dr. kuttalot. and he recommends corrective surgery to 40% patients (16 patients).

60 patients meet Dr. Lanze and out of he/she recommends corrective surgery to 30% (18 patients).

hence total patients recommended with corrective surgery out of 100 total patients is = 16 +18 = 34

Answer 9

\[0.3\times0.3\times0.3 = 0.027\]

Answer 10

thanks

Answer 11

didnt award me medals :/

Answer 12

how do you do the medal

Answer 13

well thanks! I got the medal.