Question

Two numbers are randomly selected on a number line numbered from 1 to 9. Match each scenario to its probability.

the probability that both numbers
are greater than 6 if the same
number can be chosen twice
the probability that both numbers
are less than 7 if the same
number can be chosen twice
the probability that both numbers
are odd numbers less than 6 if the
same numbers cannot be chosen
twice
the probability that both numbers
are even numbers if the same
numbers cannot be chosen twice

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Answer 1

1/9; 4/9; 1/12; 1/6

Explanation:

greater than 6 not chosen twice = 1/12

greater than 6 can be twice = 1/9

Less than 7 and can be chosen twice = 4/9

both are even but cannot be chosen twice =1/6

Answer 2

1/9; 4/9; 1/12; 1/6

Explanation:

the probability that both numbers are greater than 6 if the same number can be chosen twice--> 3/9 * 3/9 = 1/9

the probability that both numbers are less than 7 if the same number can be chosen twice --> 6/9 * 6/9 = 4/9

the probability that both numbers are odd numbers less than 6 if the same numbers cannot be chosen twice --> 3/9 * 2/8 = 1/12

the probability that both numbers are even numbers if the same numbers cannot be chosen twice --> 4/9 * 3/8 = 1/6