Alan has forgotten his 4-digit PIN code. He knows the first digit is odd, and the third digit is 3.
How many different sets of 4 digits could it be

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

    choose the correct definition for  extremo.  a.  end      b.  extra      c.  extract      d.  eventual 

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