Nishi has a 70% chance of making a free-throw. This means that out of 100%, Nishi will miss the free-throw 30% of the time.
Zero points means that Nishi will have to miss the free-throw twice. To calculate this occurrence, we must multiply the chances of Nishi missing twice.
This occurrence asks for a 30% chance to happen the first free throw, and a 30% chance to happen on the second free throw. Convert the percentages to a decimal:
[tex]30 \div 100 = .30[/tex]
Multiply these two occurrences together:
[tex].30 \times .30 = 0.09[/tex]
Convert this decimal back into a percentage:
[tex]0.09 \times 100 = 9[/tex]
There is a 9% chance that Nishi will score zero points.
