Hello, I've already solved the problem graphically, but I can't seem to solve it mathematically. I couldn't find anything online to help me solve it other than the circumference. I then calculated the radius using the formula r=a•b•c/4•A (which I also found online) and got a result of 6.39. This value matches my drawing, but…
So the measured values should not be stored anywhere but should only be used to calculate an average – or to smooth the measurement result. The oldest measured value should then be eliminated in the next measurement. This involves a brightness measurement for a mini solar system. I programmed it so that if the brightness…
How can the standard deviation be calculated in the following example? I don't understand the formula at all. What is xi? Thank you very much!
Hello, A week ago, I took part in a math competition at school, and there was a question that I had absolutely no idea how to approach. The question is as follows: How many five-digit numbers are there such that the hundreds place is the average of the ten-thousands place and the ones place? Example:…
A ranking list contains 100 transplant patients with a unique ranking from 1 to 100. Ten of these patients come from one hospital. The mean rank of these patients is 11. What is the maximum numerical ranking of one of these 10 patients?
That's a question in a math textbook. But I'm more concerned with when that's not the case. The formula for the mean of a function in the interval [a;b] is (1/(ba)) multiplied by the integral of the function on this interval. Since the difference between the two integral limits is zero, the second part of…
I have a dataset that lists, among other things, gender and height. I know how to calculate the mean height, but I'm supposed to calculate the mean height for men. Can I get some kind of new dataset for this? I also need to determine the standard deviation, skewness, and excess of men's height. Thanks…
Hello, I want to solve this problem but I can't find the solutions. I tried to establish the general formula for the mean: but I don't know if that's enough for the average and especially for the other tasks afterwards. Thank you very much
Hello, For my master's thesis, I would like to calculate whether the tested children show a significant improvement/deterioration in their values. For this, I conducted a pre- and post-measurement and obtained the following values. These are primarily for the categories "Number correct" and "PR number correct." The following information is provided in the standard value…
The following task is in the picture. How should I proceed? Is there a solution? Thanks for the help!!:)