6x is an example of a variable
The range for this function are 0,2,16,81
respectively
Answer = the value in the second picture or middle
The one in the second picture
The bar on top of the numbers 12 means that the 12 keeps on re-occurring
Answer: If P(x<a) = 0.6, then the value of a will be 0.25.
In this type of problem, it is safe to assume the normal distribution unless you are told something different.
In this probability, we have to find the z-score for a that gives a probability of 0.6. You will need a normal distribution chart to do this problem. Just find the probability that is closest to 0.6 and use that z-score.
