Step-by-step explanation:
a1 = -4 = -4/1, a2 = 8/3
r = a2/a1 = (8/3) / (-4/1) = -2/3
the formula :
an = a1. r^(n-1)
so,
an = (-4). (-2/3)^(n-1)
Answer:

Step-by-step explanation:
Sample space is a set of possible outcomes of a random experiment.
A random experiment is an experiment whose outcomes can not be predicted.
Number of red balls = 6
Number of green ball = 1
Number of blue ball = 1
Let R denotes red ball, B denotes blue ball and G denotes green ball.
Sample space = 