Stats-Beginner: to describe a binomial experiment that can solved w/ below

AI Thread Summary
A binomial experiment can be described where there are 10 trials, with a success probability of 0.2 and a failure probability of 0.8. The expression 10C5 (0.2)5 (0.8)5 represents the probability of achieving exactly 5 successes in these 10 trials. In this context, "success" could refer to an event with a 20% chance of occurring, while "failure" has an 80% chance. The total probability sums to 1, confirming the validity of the probabilities used. Understanding this setup is essential for solving related binomial probability problems.
yamuna
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Homework Statement



Describe a binomial experiment that can be solved using the expression
10C5 (0.2)5 (0.8)5

Homework Equations





The Attempt at a Solution



Have no idea.
 
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Welcome to PF!

yamuna said:
Describe a binomial experiment that can be solved using the expression
10C5 (0.2)5 (0.8)5

Hi yamuna! Welcome to PF! :smile:

Hint: 0.2 + 0.8 = 1 … hmm :rolleyes: … so what might 0.2 be? :wink:
 

Thread 'Family of lines that are at a distance of 5 from the origin'

I picked up this problem from the Schaum's series book titled "College Mathematics" by Ayres/Schmidt. It is a solved problem in the book. But what surprised me was that the solution to this problem was given in one line without any explanation. I could, therefore, not understand how the given one-line solution was reached. The one-line solution in the book says: The equation is ##x \cos{\omega} +y \sin{\omega} - 5 = 0##, ##\omega## being the parameter. From my side, the only thing I could...
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