03/02/20

In an certain species of newt, offspring are born either green or black.

In an certain species of newt, offspring are born either green or black. Suppose that 60% of these newts are born green. If we sample 123 of these newts at random, the probability distribution for... more

11/13/19

A political candidate has asked you to to conduct a poll to determine what percentage of people support her. If the candidate only wants a 1.5% margin of error at a 97.5% confidence level, what size

A political candidate has asked you to to conduct a poll to determine what percentage of people support her. If the candidate only wants a 1.5% margin of error at a 97.5% confidence level, what... more

What makes statistics economical reports so varied and different?

Search for `Iran's GDP` in Google, and what you will see is an image representing GDP of Iran, compared to other neighbor countries. It gives us the value of **393.4 billion USD (2015)**.Now in... more

06/20/19

What benefits does Bitcoin (i.e. cryptocurrency) offer?

I really, really like moderate inflation. I live in Sweden where the interest rates just went negative because we are on the brink of deflation, and the rate of inflation we have now is far too... more

06/17/19

Is zero inflation desirable?

Is zero inflation really desirable?To be more precise: Does inflation in real life have benefits that in some situations outweigh its social cost? E.g.: it works as a disincentive against holding... more

06/16/19

Are savings necessary for economic growth?

So, I've had this confusion for a long time. We all know how spending is absolutely vital for economic growth. However, at the same time, are savings necessary too?My initial opinion was "no". In a... more

06/03/19

probability distribution of coverage of a set after X independently, randomly selected members of the set?

I have a set of numbers where I am randomly and independently selecting elements within a set . After a number of these random element selections I want to know the coverage of the elements in the... more

06/03/19

Closed form equation for win percentage of two battling armies?

I was pondering a battle mechanic for a board game that is similar to, but simpler than battling armies in Risk. Consider one army of size X and a second army of size Y. The battle occurs by... more

06/03/19

Why do scientists use statistics?

Math Question I Need Help with TODAY 5.6 Question 6!!

The accompanying data represent the percentages of teenagers in various countries that have used certain drugs. Complete parts​ (a) through​ (c) below. Country A B C D E F G H I J K Drug​ 1,... more

04/28/19

I need some math help..!

Gonzalez Manufacturing borrowed ​$27000. Part of the money was borrowed at 8​%, part at 10​%, and part at 12​%. The annual interest was ​$2720​, and the total amount borrowed at 8% and 10​% was... more

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