<PRE><B>Question 1114188</B>
The following table shows the frequency of outcomes when two distinguishable coins were tossed 6,400 times and the uppermost faces were observed. 
Outcome	HH	HT	TH	TT
Frequency	1,700	1,550	1,800	1,350
What is the relative frequency that heads comes up at least once? (Round your answer to four decimal places.) 
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Ans: 1 - 1350/6400 = 0.7891
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Cheers,
Stan H.
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