3 years ago

I'm testing something, so you can just take the points if you want I don't care.

Mathematics

2 answers:

MrMuchimi3 years ago

8 0

Answer:

Hello random person, thanks for the points! <3

SVEN [57.7K]3 years ago

3 0

Answer:

...Okay thank you!

Step-by-step explanation:

...... :)

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A teacher randomly assigns her 30 students 4-digit I.D. numbers using the digits 0 to 9. No digits are repeated within an ID num

Olin [163]

The number of ways 4 digit numbers can be forms using the digits 0 to 9 with no number repeated is given by

$^{10}P_4= \frac{10!}{(10-4)!} = \frac{10!}{6!} =10\times9\times8\times7=5,040$

The probability that one of the numbers is 9876 is given by $\frac{1}{5,040}$