Find the theoretical probability of the event occurring on a single roll of a number cube.
p(number < 5) =

a 5/6
b 1/6
c 1/3
d 2/3

Which of those sequences is a geometric sequence

The parabola opens: y=√x-4 (principal square root) up down right left

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?