Chips numbered 1 through 80 are shuffled in a basket. One chip is randomly selected.
What is the probability of selecting a number that is a multiple of 15?
3/16
1/16
1/15
1/6
Please, help me.?
2017-03-28 5:01 am
回答 (5)
2017-03-28 5:05 am
There are 5 numbers that are multiples of 15: 15, 30, 45, 60, 75. Thus the probability is
.. 5/80 = 1/16
.. 5/80 = 1/16
2017-03-28 5:07 am
well, you know that the odds are going to be slightly worse than 1 in 15 because 15 divided by 80 will have a remainder. only one of those options is smaller than 1 in 15.
2017-03-28 9:54 pm
Well,
the favourable events are 15, 30, 45, 60, and 75
among 80 possible events,
so
P( Chip is a multiple of 15 ) = 5/80 = 5 * 1/(5 * 16) = 1/16
1/16 <----- Answer
hope it' ll help !!
the favourable events are 15, 30, 45, 60, and 75
among 80 possible events,
so
P( Chip is a multiple of 15 ) = 5/80 = 5 * 1/(5 * 16) = 1/16
1/16 <----- Answer
hope it' ll help !!
2017-03-28 5:12 am
1/15
2017-03-28 5:04 am
im sorry but i have no idea :(
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