Question 399402: 5.A pass word consists of one letters followed by a six digit number.
(a) How many passwords are possible if there are no restrictions?
(b) How many passwords are possible if none of the letters or digits can be repeated?
(c) What is the probability of guessing the password in one trial if there are no restrictions
4.Evaluate the given expression and express the result using the usual format for writing numbers (instead of scientific notation). 33C2
6. The table below shows the number of male and female students enrolled in nursing gat 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.
(b) Find the probability that the student is female or not a nursing major.
(c) Find the probability that the student is not female or nursing major.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! 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
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(b) How many passwords are possible if none of the letters or digits can be repeated?
Ans: 26*10*9*8*7*6*5
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(c) What is the probability of guessing the password in one trial if there are no restrictions
Ans: 1/2,600,000
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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
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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
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(b) Find the probability that the student is female or not a nursing major.
Ans: (2321+694-600)/3434
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(c) Find the probability that the student is not female or nursing major.
Ans: (1113 + 2740 - 1019)/3434
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Cheers,
Stan H.
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