We know P = 1/2
X~B(2, 0.5)
n = 1
2C1 from pascal triangle = 2
P(X=0.5)= 2C1 x 0.5 x 0.5
= 0.5
= 50%
It decreased $7 in the last 2 days
x=2 because, the question says that the sides are congruent. Therefore if the side away form 5 is one less than it so will x be one less than 3 .
9 x 3, you can't exactly get 24 juice boxes. Therefore, Mrs. Redding needs 3 packages.
