SOLUTION: table shows the number of students according to the gender from two classes class boys girls LG1 13 7 LG2 12 3 if a student is chosen at random fro

Algebra ->  Probability-and-statistics -> SOLUTION: table shows the number of students according to the gender from two classes class boys girls LG1 13 7 LG2 12 3 if a student is chosen at random fro      Log On


   

Question 907318: table shows the number of students according to the gender from two classes
class boys girls
LG1 13 7
LG2 12 3
if a student is chosen at random from class LG1 and another from the class LG2, calculate the profitability that both are boys.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

recommend Table/Totals

	B	G	T

LG1	13	7	20

LG2	12	3	15

T	25	10	35

P(both boys) = 13/20 + 12/15