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| amber79 Quote | Reply | | probabilty posted on: 1/2/2006 6:28:51 AM can anyone please help me on these questions? 1) a die is tossed 150 times, the rolling of a six is counted as a sucess: find the mean and standard deviation of this binominal experiment & what is the probability of throwing between 30 and 35 sixes? 2) the mean weight of a group of 200 people is 74kg. the standard deviation is 9kg. what is the probability that a person selected at random weights: between 90 and 100kgs? between 70 and 100kgs? is over 101kgs? weighs less than 65kgs? how many in the group weigh less than 65kgs? any help would be much appreciated! |
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Whiteyhax
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probabilty
replied on: 6/15/2006 5:19:31 PM |
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