Answer:
1 / 18
Step-by-step explanation:
PROBABILITY OF DRAWING THE NUMBER 7 THE FIRST TIME = Number of favorable outcome / Total number of outcomes
Favorable outcome = 1
Total number of outcome (1,2,3,4,5,6,7,8,9,10) = 10
PROBABILITY OF DRAWING THE NUMBER 7 THE FIRST TIME = 1 / 10
PROBABILITY OF DRAWING AN EVEN NUMBER THE SECOND TIME = Number of favorable outcome / Total number of outcomes
Favorable outcome (2,4,6,8,10) = 5
Total number of outcomes (1,2,3,4,5,6,8,9,10) = 9
PROBABILITY OF DRAWING AN EVEN NUMBER THE SECOND TIME = 5/9
PROBABILITY OF DRAWING THE NUMBER 7 THE FIRST TIME AND THEN DRAWING AN EVEN NUMBER = 1 / 10 * 5 / 9 = 1 / 18
