"A medicine is effective for 80% of patients. The table shows 30 randomly generated numbers from 0 to 999. Use the table to estimate the probability of the event." 6. The medicine is effective on each of three patients.
7. The medicine is effective on fewer than two of the next three patients.

1/2 & 1/10

Step-by-step explanation:

Each of three:

15 outcomes have all three digits 1 through 8

So, 15/30 which is 1/2

Fewer than 2 is one or none being effective, i.e one or no digits are 1 through 8

There are only three such outcomes

So, 3/30 = 1/10

7

step-by-step explanation:

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.