so my son has this question from school. I studied probability many many years ago and remember nothing at all about it(never used it afterwards).
I will be very thankful if someone can help me solve this question and also if someone can direct me to any place where I can learn these concepts again and test my learning...
Could someone solve and explain these questions please?
It is estimated that 30% of all adults in the US are obese and that 3% suffer from diabetes. If 2% of the population both is obese and diabetic, what percentage of the population has one disease only.
Welds of tubular joints can have two types of defects, , which we call A and B. Each weld produced has defect A with probability 0.064 and defect B with probability 0.043 and both defects with probability 0.025. Find the proportion of welds that has (a) Both defect A and B (b) Neither defect.
Any site which explains these concepts will be very much appreciated.
Let's focus on your first exercise and take a look at the following diagram
Can you get the % of people suffering either of obesity or from diabetes?