Sign In
P(unicorns)=12.5 %
P(zebra)=6.25 %
By adding these numbers, we get the total amount of animals (or seats) on the carousel. 4+4+2+18+1+6+3+3+6+1=48 Now we can calculate the probability that we pick one of the desired animals. To express it as a percentage, we calculate the fraction and then multiply the quotient by 100. P(horse)&=18/48=0.33333...≈ 33 % [1em] P(unicorns)&=6/48=0.125 = 12.5 % [1em] P(zebra)&=3/48=0.0625=6.25 %
Because Eduardo has the equivalent of $ 1 for each type of coin, we can determine the total number of coins in his pocket. 100+20+10=130 coins Now we can calculate the probability that Eduardo pulls out a dime by dividing the number of dimes with the total number of coins. P(dime)&=10/130=0.07692...≈ 7.69 %
There is a total of 5 shaded regions. From the diagram we count an additional 4 white regions which means the total number of regions, shaded and unshaded, is 5+4=9. P(shaded region)&=5/9=0.55555...≈ 56 %