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Ten balls, each marked with a number from 0 to 9 are placed in a bag and two balls are taken out at random.

Find the probability that the sum of the numbers is 4.​

2 Answers

4 votes

Explanation:

The probability of two balls that are taken without replacement add up to 4 are 0+4 or 1+3 or 2+2

probability = occurrence/ possible outcomes

probability that sum of number is 4 = 3/100

User Tomas Randus
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Hehhhhhhhhhh im soooo srryy but help me plzz
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