Lila forgot the security code for her apartment building. The code is two different digits followed by a capital letter. How man
y different possible codes are there?
A. 2,106
B. 2,340
C. 2,600
A. 2,106
B. 2,340
C. 2,600
2 answers:
Answer:B. 2,340
Step-by-step explanation:
The number of digits = 10 [0,1,2,3,4,5,6,7,8,9]
The number of alphabets = 26
Now we are given that the code is two different digits followed by a capital letter.
Therefore, the number of different possible codes there are :-
Hence, there are 2340 different possible codes.
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Answer:
B) 0.02
Step-by-step explanation:
<u>Use the Binomial Theorem</u>
We have the probability of success, , and the probability of failure,
. The binomial coefficient,
, represents the amount of possible combinations that
items can be chosen out of
items, with its respective formula
.
Hence, the best choice for the probability that 4 students chosen at random from the class of 30 that want the next test to be on Monday will be option B, 0.02