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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
How many 3 digit number have their last digit as 9?
Presuming base 10 (aka, all numbers are between 0-9), 1+(10^3/10) so 101.
Edit: Changed the exponential analysis to emphasis the fact that 10 9's occur in 100 10's. Some result though.
You can write nine numbers: 125, 225, 325, 425, 525, 625, 725, 825, 925.
How many possible outcomes are there of tossing a coin 30times?
That's the same as the highest binary number you can write with 30 bits.
It's 230 = 1,073,741,824 .
Get started.
How to find rational numbers using arithmetic mean?
A rational number is one that is the ratio of two integers, like 3/4 or 355/113. An irrational number can't be expressed as the ratio of any two integers, and examples are the square root of 2, and pi.
Between any two rational numbers there is an irrational number, and between any two irrational numbers there is a rational number.
Can the range and the mode be the same number?
yes, they can
take for example this set:
3, 4, 4, 7
range is 4, 7-3
mode is 4, 4 appears twice and everything else appears once
median is 4, 4+4/2 = 4
How do you find the median for groups if numbers?
you add the numbers together than divide that by 2, after that you add how many numbers there are then subtract 2
What does one-fourth one sixth one third equal to?
Addition, subtraction, multiplication or division?
If addition, then 1/4 + 1/6 + 1/3 = 3/4
The probability of 10 heads in a row is (0.5)10 = 0.000977 = 0.0977% .
It makes no difference what has come before or what comes after.
What is the digits written to the left of the vertical rule of a stem and leaf plot are called?
The left side of the vertical rule of a stem-and-leaf plot is the "stem", so the numbers are the "stem," also.
Why do box and whisker graphs have boxes?
Because otherwise they would be "non-box" and whisker graphs!
How many combinations of 7 numbers are there using 0 through 9?
The number of combinations of 7 numbers from 10 is 10C7 = 10*9*8/(3*2*1) = 120
How can Excel summarize data in a range of data?
It can use functions like the SUM function or the SUBTOTAL function. Depending on what exactly the user wants to do, there are lots of functions that could be used to summarise the data.
It can use functions like the SUM function or the SUBTOTAL function. Depending on what exactly the user wants to do, there are lots of functions that could be used to summarise the data.
It can use functions like the SUM function or the SUBTOTAL function. Depending on what exactly the user wants to do, there are lots of functions that could be used to summarise the data.
It can use functions like the SUM function or the SUBTOTAL function. Depending on what exactly the user wants to do, there are lots of functions that could be used to summarise the data.
It can use functions like the SUM function or the SUBTOTAL function. Depending on what exactly the user wants to do, there are lots of functions that could be used to summarise the data.
It can use functions like the SUM function or the SUBTOTAL function. Depending on what exactly the user wants to do, there are lots of functions that could be used to summarise the data.
It can use functions like the SUM function or the SUBTOTAL function. Depending on what exactly the user wants to do, there are lots of functions that could be used to summarise the data.
It can use functions like the SUM function or the SUBTOTAL function. Depending on what exactly the user wants to do, there are lots of functions that could be used to summarise the data.
It can use functions like the SUM function or the SUBTOTAL function. Depending on what exactly the user wants to do, there are lots of functions that could be used to summarise the data.
It can use functions like the SUM function or the SUBTOTAL function. Depending on what exactly the user wants to do, there are lots of functions that could be used to summarise the data.
It can use functions like the SUM function or the SUBTOTAL function. Depending on what exactly the user wants to do, there are lots of functions that could be used to summarise the data.
