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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.
36,756 Questions
What is the digit on the side called in a mixed number?
It's a whole number and the fraction is just that, a fraction.
Given the numbers 12345 and 6 how many numbers of different permutations of lining up the letters?
6! = 6*5*4*3*2*1 = 720
What is the probability of not drawing a black six from a deck of cards?
Probability of not drawing a black six from a deck of cards = 1 - probability of drawing a black 6 = 1 - 2/52 = 50/52 = 25/26.
Why normal distribution curve does not touch each other?
A single curve cannot touch "each other" since "each other" implies two curves.
How many three digit numbers will be there which are divisible by 13?
Well, let's see . . .
13 x 8 = 104. That's the smallest one.
13 x 76 = 988. That's the biggest one.
So all of the multiples of 13 ... from the 8th to the 76th ... are 3-digit numbers.
That's the same as saying: "The first 76 multiples except for the first 7."
So there are (76 - 7) = 69 of them.
What do you do when you get two medians that are not the same?
Add them together and divide it by 2
e.g medians:
2 + 3 = 5
5 / 2 = 2.5
Median is 2.5
Hope that helped. :)
How do you calculate the confidence interval for a population mea?
It's a mystery. need detetive conan.
300
What is the probability of obtaining a sum of at least 6when rolling a pair of dice?
The best way to do this is to note that this is 1 minus the probability of obtaining a sum less than 6.
The probability of obtaining a 2 is 1/36 (both dice get 1)
The probability of obtaining a 3 is 1/18 (one dice gets 1, the other gets 2, or the other way around)
The probability of obtaining a 4 is 1/12 (both dice get 2, or one dice gets 1 and the other 3, or the other way around)
The probability of obtaining a 5 is 1/9 (one dice gets 2 and the other 3, or the other way around, or one dice gets 1 and the other 4, or the other way around)
Adding these probabilities up gives 5/18. 1 minus this is 13/18
Thus the probability of obtaining a sum of at least 6 when rolling a pair of dice is 13/18.
Which formula is more appropriate to use between mean median and mode?
Each has its advantages and disadvantages and the answer will depend on the nature of the data.
What is the greatest 9 digit number that can be made using all of the digits from 1 through 9?
987,654,321
Is the expected value of any random variable just the average of the values?
The expected value is the long-run average value of repetitions of the experiment it represents.
