a ball is chosen from a bag that contains 30 balls numbered from 1 to 30 what is the probability that the ball chosen will be dicisvle of 7 ?
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Answered by
3
Answer:
1/30 is the correct answer
Answered by
13
Answer:
TOTAL NUMBER OF BALLS = 30
AND THEY ARE NUMBERED 1 TO 30 ,
SO, NUMBERS DIVISIBLE BY 7 BETWEEN 1 TO 30 ARE 7 , 14 , 21 and 28 i.e. 4 NUMBERS.
LET EVENT E BE THE BALL CHOSEN WILL BE DIVISIBLE BY 7.
TOTAL NUMBER OF OUTCOMES = 30
FAVOURABLE NUMBER OF OUTCOMES = 4
PROBABILITY OF EVENT E = 4/30 = 2/15
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