A book

A book contains 524 pages. If it is known that a person will select any one page between the pages numbered 125 and 384, find the probability of choosing the page numbered 252 or 253.

Correct result:

p =  0.7692 %

Solution:

C1(260)=(2601)=260!1!(2601)!=2601=260 C1(2)=(21)=2!1!(21)!=21=2  p=100 (21)(384125+11)=100 2(384125+11)=1013=0.7692%



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