Answer:
a) 0.70
b) 0.30
c) 12/45 =4/15
d) 2/45
Explanation:
a) Prob of drawing a marble red or white = No of red and white marbles/total marbles
= 7/10 = 0.70
b) Prob of drawing a marble neither red nor white = 1-7/10 = 0.30
c) Prob of drawing two marble one red and one white at the same time
=

d) Prob of drawing two marble one blue and orange white at the same time
=
