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Cadenc4276
04.02.2020 •
Mathematics
Hurry will mark brainiest this is an easy question
find the probability that a roll of two dice will produce a sum of either 7 or 11
how many times would you expect this to occur in 50 trials?
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Ответ:
first qn
4/36=1/9
total no. of ways to roll a dice=36
no. of ways to produce 7=3
(1+6=7, 2+5=7, 3+4=7)
no. of ways to produce 11=1
(5+6=11)
there are 4 ways in total. 4/36 simplify it to be 1/9
second qn im not sure but i think its
1/9 x 50 = 50/9 = 5 x (5/9)
round it off to the smaller whole no. which is 5 so i think its 5 times in 50 trials
Ответ: