0
Add your answer:
Earn +20 pts
What is the sum of all possible four digit numbers using the digits 2518?
Some 24 different numbers summing to 107,357 is the result. (A non-replacement set was used; you can't use a number more than once, so no "5555" or "5512" or the like.) 1258, 1285, 1528, 1582, 1825, 1852 2158, 2185, 2518, 1581, ... 5128, 5182, ... 8125, ...
What is the standard deviation of the following data set rounded to the nearest tenth?
We won't be able to give a specific number in the absence of a data set but as for the rounding... Sometimes it is advantageous to express a value in round numbers. To round to a particular place, look at the digit immediately to the right of the one you want to round to, in this case, the hundredths place. If that digit is 4, 3, 2, 1 or 0, zero it and everything to the right of it out. If that digit is 5, 6, 7, 8 or 9, increase your target digit by one and zero everything to the right of it out. If your target digit is 9, it will become a zero and increase the digit to the left of it by one.
How many 4 digit combinations can be made with numbers 3 7 9 4?
The number of combinations possible for taking a specified sub-set of numbers, r, from a set, n, isC(n,r) = n!/[r!(n-r)!]In this case, n = 4 and r = 1, soC(n,r) = 4!/1!3!C(n,r) = 24/6C(n,r) = 4Therefore, there are four possible combinations of the numbers 3, 7, 9 and 4.==================================This contributor strongly disagrees, but is leaving the original answer hereso that others can shop and compare.With their commas, parentheses, and factorials, the formulas are certainly impressive.Only the conclusion is wrong.The question specified "4-digit" combinations, so 'n' and 'r' are both 4.Now, to come down off the pedestal and make it understandable as well asformally rigorous ..."Combination" really means different groups of 4 digits that you can select outof the four you gave us. There's only one of those groups.If you actually want to know how many different 4-digit numbers you can makefrom them, then what you want is called "permutations" of the four digits, andyou can think of it this way, without using 'n', 'r', or parentheses or factorials:The first digit can be any one of 4. For each of those . . .The second digit can be any one of the remaining 3. For each of those . . .The third digit can be either one of the remaining 2.So the total number of different ways to line them up is (4 x 3 x 2) = 24 different 4-digit numbers.
What does the median score mean?
the number that is in the middle of that particular set of numbers.
What are the set of numbers in which 8 is the mean median and mode?
One set of numbers for which this is true is {8}.
What are the 7 digit numbers that have 1246789 as they're number between 8000000 to 9000000?
They belong to a set of numbers whose first digit is 8. There are 720 such numbers and I regret that I do not have the patience to list them all.
The two set digit natural numbers is?
The set of two-digit number
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.
How many numbers can be made from four digits when two are the same?
I assume you mean how many 4-digit numbers can be made from a set such as {A,A, B, C} where A, B and C are single digits. There are 12 such numbers.
Is the security code on back of a Visa card the first set of four numbers or the last three numbers?
The security code on any credit card would be the last set of digits on back of the card with is the three digit number
How do you unlock Motorola krazer keybad?
You have to type in the password, (its the last four numbers of your seven digit phone number, that is unless you set the password to a different number)
What is the sum of all 4 digit numbers that can be formed using digits 0179no repetition?
To make this simpler, I'll assume that numbers with a leading zero like 0179 are "four digit numbers" for the purposes of this question. The number of such numbers that can be formed by those numbers without repeating one of the digits is 4x3x2x1 = 24. We could list them all and add them up, but let's instead just realize that we can choose any digit and put it in any position, and the other digits can then be arranged in 3x2x1 = 6 ways. So the sum for any position is (0+1+7+9)*6 = 102, and the sum of the set of "four digit" numbers is 102x1000+102x100+102x10+102 = 113322. You can figure out for yourself what the sum would be if you exclude the numbers that are really three digit numbers (hint: use the technique above to find the sum of the three digit numbers that can be formed using the digits 1, 7, and 9; then subtract that from the other total).
What four consecutive numbers have the product of 182?
There is no set of four consecutive numbers with a product of 182. There is a set of four consecutive numbers with a sumof 182: 9, 20, 21 and 22.
How do you determine the list of all the subsets of sets?
If a set has N elements then it has 2N subsets. So you can see that a list of all subsets soon becomes a very big task. For reasonably small values of N, one way to generate all subsets is to list the binary numbers from 0 to 2N. Then, each of these represents a subset of the original set. If the nth digit is 0 then the nth element is not in the set and if the nth digit is 1 then the nth element is in the set. That will generate all the subsets.
What is 654 in math?
A number that is positive or a set of one-digit consecutive numbers.
Could anyone list numbers not in the set of complex numbers?
No. Complex numbers is the highest set of numbers you can go, and there are no sets outside of complex numbers.
What is the first set closest to zero of three consecutive odd numbers which when you sum your squares gives you four digit number consisting of the same repeated digit?
41, 43, 45 consecutive odd when squared and added equal 5555
