Challenging Probability

[Admin]

#14862

In a lottery, n tickets are sold and there is only one prize. If you purchase m tickets, what is the probability that you do NOT win a prize?

If there are n tickets and you have m tickets, this means the chance of winning a prize is:

$$P(Prize)=\frac{m}{n}$$

hence the probability of NOT winning a prize would be its complement ie 1 – P(prize)

$$P(Not\,Prize)=1-\frac{m}{n}$$

[Admin]

#14863

Theo has made a carpet with a geometric pattern, using 4 colours – purple, red, blue and green. If I throw a coin on the carpet, what is the probability it lands on purple?

 

 

Split it up so that each area is equal, this will make 8 parts of the same area. Purple covers 4 out of the 8 new squares
P(purple) = ⁴/₈
= ½

[Author]

Posts