Answer:
a. 0.24094
b. 0.2494
c. 0.1473
Step-by-step explanation:
The total probability of choosing any 20 random balls out of 80 is 
. We use combination since the order of selection does not matter
a. P(all numbers are selected)
are our numbers, 
is the selection of other ten numbers apart from our numbers.
b. P(none of them are selected)
Since none of our numbers are selected, we assume that all the numbers selected are from the other 70.
c. P (exactly four are selected)
Only four from our numbers are selected and the rest 16 from the other 70 numbers.
Answer:
78
Step-by-step explanation:
if you flip it upside down it is in numerical order starting from 86. filling in the blank then flipping the number upside will result in the answer being 78. if not the then idk bro
Answer:
16.642cm
Step-by-step explanation:
Diameter of a circle = 5.3cm
Circumference of a circle = π(d)
= π x 5.3
= 3.14 x 5.3
= 16.642cm
It will be 2/5 ft long and 7/25 ft wide. 200•1/500=2/5
140•1/500=7/25
