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Statistics
Statistics deals with collecting, organizing, and interpreting numerical data. An important aspect of statistics is the analysis of population characteristics inferred from sampling.
36,755 Questions
When apply geomatric distribution?
When you want to find the probability of something happening for the first time while repeating an experiment, you use the geometric distribution. For example, you are throwing a six-faced die and you are expecting the number '6' to be thrown for the first time.
What is the probability of rolling a sum which is a multiple of five?
There are 36 permutations of rolling two standard dice. Of them, four (1+4, 2+3, 3+2, and 4+1) sum to five, and three (6+4, 5+5, and 4+6) sum to ten. The probability, then of rolling a multiple of five is 7 in 36, or about 0.1944.
How many 4-digit numbers can be formed by the numbers 1 2 3 4 5 6 7 8 9 0?
If the same digit can be repeated in the 4-digit number, then there are (9 x 10 x 10 x 10) = 9,000 of them.
If the same digit can't be repeated in a 4-digit number, then there are (9 x 9 x 8 x 7) = 4,536 of them.
Assuming the term "largest" applies to both, 9999 - 987 = 9013
What is the smallest 3 digits number that can rounded to the 200?
100 (rounded up to the nearest 200).
How many six digits numbers can be formed using 1-2-3-4-5-6-7-8-9-0?
All of them from 100,000 to 999,999 .
So that's 999,999 minus the first 99,999 (which all have less than 6 digits) = 900,000 of them.
What is probability that she will pick a tennis of 4 that she has?
if they are all tennis balls, then 100% percent
What is the largest 4 digit odd number you can make from 1 through 9 without repeating a number?
9875
How many faces edgesand corners does a pyramid has?
A pyramid is a generic term used to describe a polyhedron with a polygonal base and a number of triangles rising from that base to meet at an apex. A pyramid whose base is a polygon with n-sides (or vertices) has n+1 faces, n+1 vertices and 2n edges, where n ≥ 3.
The answer depends on the cost of the various options and the required accuracy of the reusults.
How many 4 digit combinations can be made with 10 obects?
"There are 10,000 different combinations"
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Give an example of how to find the standard deviation?
Look at the Wikipedia article on "Standard deviation" - it includes an example right at the beginning.
How many millimeters in 48inches?
One inch is 25.4 millimeters, so 48 inches is... 25.4 x 48 = 1219.2
Can you see the example of finding mean mode median and range of a grouped data?
The median is the middle number of any given set when they are in order, least to greatest. If there is an even number of values, the median is the average of the middle two.
Ex. (10, 17, 20, 45, 68)
The median is 20.
In any given set, the mode is the number that appears most often. If no number appears more frequently than any other, there is no mode.
Ex. (10, 17, 20, 45, 68)
This set has no mode.
In any given set, the range is the smallest number subtracted from the largest number.
Ex. (10, 17, 20, 45, 68)
68 - 10 = 58
The range is 58.
In any given set, the mean is the average, which is the total of the numbers divided by how many numbers there are.
Ex. (10, 17, 20, 45, 68)
68 + 45 + 20 + 17 + 10 = 160
There are 5 numbers in this set.
160 ÷ 5 = 32
The mean is 32.
