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What is the probability that the first digit of a locker combination is less than 4 A 3 over 10 B 1 over 3 C 2 over 5 D 4 over 9?
Wiki User
∙ 9y ago
The answer depends on how many numbers are on each disk and also on whether or not numbers starting with 0 are permitted.
Wiki User
∙ 9y ago
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What is most probable chance for four digit numbers have 7 as their first digit and 7 as their last digit?
They first has a greater probability. This is because the first digit comes from a set of 9: {1,2,3,4,5,6,7,8,9} while the second comes from that same set AND 0.
What is the probability of opening a combination lock on the first try?
please go away
What digit will used most?
According to Benford's law, the first digit is most likely to be 1. Benford's law for the first digit states that the probability of digit, d, is log10(1 + 1/d) where d = 1, 2, ... , 9. [0 cannot be the leading digit]. This gives the probability of 1 as 30.1%. The distribution becomes more uniform as the number of digits in the representation of numbers is increased but since we usually truncate numbers to a few digits, the state of uniformity is not always reached.
What is the probability of receiving matching PIN numbers for bank cards?
For a four digit pin number: You receive the first PIN number, let's say WXYZ. The probability that the next pin number you receive would match (assuming they are randomly provided), is: For each digit, they are 10 possibilities [0 1 2 3 4 5 6 7 8 8]. The probability that one specific number is chosen is thus of 1/10. For the are four digits, hence four independent selection of one digit, each with a probability of 1/10. The probability of an event, combination of independent events, is the product of the the probability of the independent event. Thus, the probability that the next pin number you receive would match (assuming they are randomly provided), is: 1/10*1/10*1/10*1/10 or 1/10^4 or 0.0001 or 1 out 10000
What is the probability of getting a license plate that has a repeated letter or digit if you live in a state that has two numerals followed by two letters followed by four numerals?
There are ten digits and twenty-six letters, assuming unconstrained choice of both. The probability of getting a repetition in the first two digits is 10/100, since there are 10 repetitious combinations of two digits among the 100 pairs of digits possible.To calculate the probability of a repetition in the two letters, consider that there are 262 combinations, of which 26 X 25 do not contain repetitions. (There is free choice among 26 alternatives for the first letter, but only 25 choice for the following letter.) Therefore, the probability of a repetition within the two letters is (26)(25)/262 or 25/26.The chance of a repeated digit within the four digit bloc is (10)(9)(8)(7)/104) or 504/1000.If there is no repetition of a digit within either the two-digit bloc or the four-digit bloc, there is still a chance of repetition of a digit between the blocs. The chance of this is (8 X 7 X 6 x 5)/104 or 168/1000.To reach the final answer, it is advantageous to calculate first the probability of not getting the specified repetition and then subtract this number from one. The probability of not getting a repetition in the first bloc is 9/10, and the probability of not getting a repetition between the first and second blocs is 168/1000. Therefore, the probability of not getting a repetition within the first bloc or between the first and the second number blocs is the product of these two, or 1512/10,000. Further multiplications by the independent probabilities of no repetition within the two remaining blocs yields a value of about 2.88 X 10-4. Therefore, the probability of at least one of the repetitions specified is about 0.999712.
What is most probable chance for four digit numbers have 7 as their first digit and 7 as their last digit?
They first has a greater probability. This is because the first digit comes from a set of 9: {1,2,3,4,5,6,7,8,9} while the second comes from that same set AND 0.
What is the probability of opening a combination lock on the first try?
please go away
What digit will used most?
According to Benford's law, the first digit is most likely to be 1. Benford's law for the first digit states that the probability of digit, d, is log10(1 + 1/d) where d = 1, 2, ... , 9. [0 cannot be the leading digit]. This gives the probability of 1 as 30.1%. The distribution becomes more uniform as the number of digits in the representation of numbers is increased but since we usually truncate numbers to a few digits, the state of uniformity is not always reached.
Where is the bluprint in poptropica in big nate Island?
you find it by first,getting the combination too the locker by getting all the pieces to the comic...on the comic strip,there will be the combination.Now,go to the locker located in the school on the top floor...by the way,the locker your doing it on is the one that has the stuff sticking out of it.I don't remember what the combination is,but you can figure that out.
On poptropica how do you get the school blueprint?
first you need to finish the big nate comic and it will give you the locker combination and then you go to hte school and you can unlock the locker then you click on the mess at the bottom and the school blueprints are there
What is the probability of receiving matching PIN numbers for bank cards?
For a four digit pin number: You receive the first PIN number, let's say WXYZ. The probability that the next pin number you receive would match (assuming they are randomly provided), is: For each digit, they are 10 possibilities [0 1 2 3 4 5 6 7 8 8]. The probability that one specific number is chosen is thus of 1/10. For the are four digits, hence four independent selection of one digit, each with a probability of 1/10. The probability of an event, combination of independent events, is the product of the the probability of the independent event. Thus, the probability that the next pin number you receive would match (assuming they are randomly provided), is: 1/10*1/10*1/10*1/10 or 1/10^4 or 0.0001 or 1 out 10000
What is the probability of getting a license plate that has a repeated letter or digit if you live in a state that has two numerals followed by two letters followed by four numerals?
There are ten digits and twenty-six letters, assuming unconstrained choice of both. The probability of getting a repetition in the first two digits is 10/100, since there are 10 repetitious combinations of two digits among the 100 pairs of digits possible.To calculate the probability of a repetition in the two letters, consider that there are 262 combinations, of which 26 X 25 do not contain repetitions. (There is free choice among 26 alternatives for the first letter, but only 25 choice for the following letter.) Therefore, the probability of a repetition within the two letters is (26)(25)/262 or 25/26.The chance of a repeated digit within the four digit bloc is (10)(9)(8)(7)/104) or 504/1000.If there is no repetition of a digit within either the two-digit bloc or the four-digit bloc, there is still a chance of repetition of a digit between the blocs. The chance of this is (8 X 7 X 6 x 5)/104 or 168/1000.To reach the final answer, it is advantageous to calculate first the probability of not getting the specified repetition and then subtract this number from one. The probability of not getting a repetition in the first bloc is 9/10, and the probability of not getting a repetition between the first and second blocs is 168/1000. Therefore, the probability of not getting a repetition within the first bloc or between the first and the second number blocs is the product of these two, or 1512/10,000. Further multiplications by the independent probabilities of no repetition within the two remaining blocs yields a value of about 2.88 X 10-4. Therefore, the probability of at least one of the repetitions specified is about 0.999712.
150 lockers first kid opens each door next kid closes every other door third kid changes every third door if you are the last kid of 150 what will your door be?
well if all the kids started opening the first locker and then counted then the last kid would only open the first locker. If they started with their number then they would be the 150th locker open or closed If its the first locker you would close the locker if its the last locker you would close the locker
What is the first digit multiplied by 8?
That all depends upon what the first digit is. For example: First digit is 1. Answer is: 8 First digit is 2. Answer is 16. First digit is 3. Answer is 24.
How do you open gregs locker on wimpy wonderland?
First go to the tree on the right of the school and you will find a note. It will say Greg's locker combination. To get into the school push the trash barrel to the left side of the seesaw. Then jump on the right side of the seesaw. Then push the trash barrel over to the left side of the ledge. Then jump on the barrel and on to the window ledge. You will find Manny in the school. You chase him. After look for locker that looks different from all the other lockers. Then move your mouse over three spaces. You will find Greg's locker. Then use the combination that you found in the tree to open the locker.
Which is the first digit in 27080?
This first digit is the first number. In this case the first digit is the number 2.
What is the probability of a second digit of a locker combination is less than 7 if the first digit is less than 7 and cannot be repeated?
Assuming a zero is one of the allowed possibilities, then there are 7 numbers less than 7 (ie., 0-6). However, since you are not allowed to repeat, then that leaves 6 possibilities out of a presumed total of 10. If you want it in percentage, that would be a 60% chance, since percent really means "per 100," and 6 out of 10 is the same as 60 out of 100. So if you mean this 2nd digit by itself and just its odds, it should be 60%.Now, if you mean the chances of the first 2 digits together, then one would have to multiply the possibilities of each event. There is a 70% chance of finding a digit less than 7, assuming 0 is allowed. And there is a 60% chance of finding a digit less than 7 that does not repeat the previous. So if you multiply 7 out of 10 with 6 out of 10, you get 42 out of 100, or 42%.
