Answer:
5) 13% 7) 3/28
Step-by-step explanation:
5)
total number of marbles: 2 + 3 + 5 + 1 + 2 + 2 = 15 marbles.
probability its blue: [tex]\frac{2}{15}[/tex] __in fraction
in percentage: [tex]\frac{2}{15}[/tex] * 100 = 13%
7)
total number of marbles: 4 + 5 + 2 + 9 + 1 = 21
probability of selecting a red marble: 5/21
then 1 marbles is reduced as not replaced.
total marbles: 21 - 1 = 20
probability of getting orange marble: 9/20
total probability: 9/20 * 5/21 = 3/28
