Recent content by jridgeman99

Hello, the problem is as follows. I'm not sure if it is a permutation or combination problem. It says if a thief steals and ATM card and must randomly guess the correct three digit pin code from an 8 key keypad. Repetition of digits is allowed. What is the probability of a correct guess on the...

This is a problem I got for a review in probability and statistics The layout of the data is as follows: A B C D Order Accurate- 315 277 234 120 Order not - 34 50 35 18 accurate Like I said previously this is an or...

66% of adults have health insurance, what is the probability that 4 adults selected at random have health insurance?

Yes, my work is as follows: The weighted mean formula would be 4*2 + 3*3 + 2*3 + 1*4/ 4+3+2+1

Hello, yes. I have a question pertaining to probability and statistics and it concerns finding a weighted mean which is shown through calculating a GPA. In this context it pertains to a review I'm doing and I can't figure out how I'm getting it wrong. I may be missing something rather little but...