Question 1180931
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(a)  The events are within the 30 minutes time interval of the total  110 = 120-10 minutes.


     THEREFORE,  P = {{{30/110}}} = 0.2727... = 0.2727  (rounded) = 27.27%.    <U>ANSWER</U>



(b)  This time the events are within of 30 minutes time interval  (30 = 120-90) 
 of the total  110 = 120-10 minutes, so AGAIN


                 P = {{{(120-90)/110}}} = {{{30/110}}} = 0.2727... = 0.2727  (rounded)  = 27.27%.    <U>ANSWER</U>



(c)  Average time  is  {{{(10 + 120)/2}}} = {{{130/2}}} = 65 minutes.    <U>ANSWER</U>
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