There is a bag filled with 3 blue and 4 red marbles a marble is taken at random from the bag the colour is noted and then it's replaced another marble is taken at random what is the probability of getting at least 1 red?

A marble is taken at random from the bag, the colour is noted and then it is not replaced.

the answer is d

the answer is in the first quadrant, which make the y-int positive.

since the dots are going down, therefore the correlation is negative

i hope it is right.

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.