SOLUTION: Please show me specific detailed answers to these question i got wrong on my test. Thankyou. the sizes of leaves( in cm2) of a tree follow a normal distribution with a mean of

Question 597514: Please show me specific detailed answers to these question i got wrong on my test. Thankyou.
the sizes of leaves( in cm2) of a tree follow a normal distribution with a mean of 12.9cm2 and a standard deviation of 2.4cm2 .find the probabilities of the following events.
the size of a randomly selected leaf is greater than (15/20)cm2.
average size of 36 randomly selected leaves is greater than (15/20)cm2.
suppose you roll two fair dice for 20 times and let y be the number of times that the random variable x gets a value greater than or equal to 4.
find p(x>4)
what is the probability that y is greater than zero?
find the mean variance and standard deviation of the random variable Y.
Answer by fire120(1) (Show Source): You can put this solution on YOUR website!

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