Question

Probability (Medal will be given)
In arrangement of STT2456, what is probability of
a) starts with letters ?
b) starts and end with number given all letters together ?
c) letters and numbers alternate ?
d) selecting '654' in this order when all letters removed ?

Answer 1

Hello there! :D
If you are helped, medal SHOULD be given [Read the CoC]
It need not always be specified in your questions to lure users in.
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Answer 2

There are 3 letters and 4 numbers.
The probability it starts with letters is \(3/(3+4)\)

Answer 3

I don't understand what the other ones mean, so I can't help with them.

Answer 4

Thanks anyway