I was hoping someone could check to see if my answers are correct. Here's my problem:
Four hundred people attending a party are each given a number, 1 to 400. One number is called at random. Find the probability that the number called:
(a) is 123
(b) has the same three digits
(c) end in 9
--------------------------------------------------------------
Here are my answers:
(a) 1/400 = .0025
(b) 3/400 = .0075
(c) 40/400 = .1
*Also, the book asks to explain in each case what the probabilites mean empirically. I have no clue how to explain that. Any help would be much appreciated!
Four hundred people attending a party are each given a number, 1 to 400. One number is called at random. Find the probability that the number called:
(a) is 123
(b) has the same three digits
(c) end in 9
--------------------------------------------------------------
Here are my answers:
(a) 1/400 = .0025
(b) 3/400 = .0075
(c) 40/400 = .1
*Also, the book asks to explain in each case what the probabilites mean empirically. I have no clue how to explain that. Any help would be much appreciated!
