<PRE><B>Question 399402</B>
5.A pass word consists of one letter followed by a six  digit number.
(a)	How many passwords are possible if there are no restrictions?
Ans: 26*100,000 = 2,600,000
-------------------------------------
(b)	How many passwords are possible if none of the letters or digits can be repeated?
Ans: 26*10*9*8*7*6*5
-------------------------------------
(c)	What is the probability of guessing the password in one trial if there are no restrictions
Ans: 1/2,600,000
-------------------------------------
4.Evaluate the given expression and express the result using the usual format for writing numbers (instead of scientific notation).   
Ans: 33C2 = (33*32)/(1*2) = 33*16 = 528
-------------------------------------


6.	The table below shows the number of male and female students enrolled in nursing at a university for a certain semester.   A student is selected at random
Nursing majors		Non-nursing majors	Total
Males		   94			1019		1113
Females            600			1721		2321
Total	           694			2740		3434
ROUND EACH TO THEE NEAREST THOUSANDTH AS NEEDED
(a)	Find the probability that the student is male or a nursing major.
Ans: (1113+694-94)/3434
--------------------------------
(b)	Find the probability that the student is female or not a nursing major.
Ans: (2321+694-600)/3434
--------------------------------
(c)	Find the probability that the student is not female or nursing major.
Ans: (1113 + 2740 - 1019)/3434
=====================================
Cheers,
Stan H.

</PRE>