Stats, to simplify the expression

In summary, the conversation discusses the problem 10P8 and the use of the formula for permutations to solve it. It also mentions the use of a calculator, but states that it is not necessary and that the problem could potentially be simplified into the product of two numbers. The conversation ends with a clarification question about the definition of nPr.
  • #1
yamuna
4
0

Homework Statement



10P8


Homework Equations





The Attempt at a Solution



2
1,814,400
3,628,800
80
 
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  • #2
Use the formula for the number of permutations, then use a calculator.
 
  • #3
yamuna said:

Homework Statement



10P8


Homework Equations





The Attempt at a Solution



2
1,814,400
3,628,800
80
10P8 is a single number. You have written 4 numbers. Which is your intended answer? (None of them are correct.) Do you know the definition of "nPm"?

(A calculator is not necessary. I suspect the reason the problem said "simplify" is that this can be written as the product of two simple numbers.)
 
  • #4
HallsofIvy said:
10P8 is a single number. You have written 4 numbers. Which is your intended answer? (None of them are correct.) Do you know the definition of "nPm"?

(A calculator is not necessary. I suspect the reason the problem said "simplify" is that this can be written as the product of two simple numbers.)

I think it is convention that nPr = n!/(n - r)!
 
  • #5
I was asking yamuna. If he/she knows the definition of nPr, this should be a simple problem.
 

FAQ: Stats, to simplify the expression

1. What does "Stats, to simplify the expression" mean?

"Stats, to simplify the expression" refers to the process of using statistical methods to make complex data more understandable and manageable. It involves analyzing and summarizing large amounts of data in order to draw meaningful conclusions and make informed decisions.

2. Why is it important to simplify expressions in statistics?

Simplifying expressions in statistics is important because it allows us to better understand and interpret data. By reducing complex data into more manageable forms, we can identify patterns, trends, and relationships that may not have been apparent before.

3. What are some common techniques used to simplify expressions in statistics?

Some common techniques used to simplify expressions in statistics include data cleaning, data reduction, and data visualization. Data cleaning involves removing errors and outliers from the data, while data reduction involves summarizing large amounts of data into more manageable forms, such as averages or percentages. Data visualization uses graphs and charts to make complex data more easily understandable.

4. How can simplifying expressions help with decision-making?

By simplifying expressions in statistics, we can more easily identify key insights and patterns in data, which can inform decision-making. For example, simplifying data into visual representations can help us identify trends and make predictions, while simplifying data through averages can help us make informed comparisons and evaluate outcomes.

5. What are some potential challenges of simplifying expressions in statistics?

Some potential challenges of simplifying expressions in statistics include dealing with incomplete or biased data, making assumptions when simplifying data, and choosing appropriate methods for simplification. It is important to carefully consider the data and use appropriate techniques to ensure that simplification does not distort or misrepresent the data.

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