Statistics & Probability Question - Can Someone Please Help?
Statistics & Probability Question - Can Someone Please Help?
A box contains 07 flags each of different colour. A signal is made by flying 03 flags on a vertical flagpole.
(a) How many different signals can be made? (Note that a signal depends on the order of the flags as well as their colour)
(b) When a signal is flying, how many different combinations of flags could be left in the box?
If anyone could please help, I'd be very grateful.
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