Home > INT2 > Chapter 3 > Lesson 3.2.5 > Problem 3-117
You help out at the bowling alley on weekends. One of the arcade games has a bin filled with stuffed animals. A robotic arm randomly grabs a stuffed animal as a prize for the player. You are in charge of filling the bin.
You are told that the probability of getting a stuffed giraffe today is
. If there are giraffes in the bin, what is the total number of stuffed animals in the bin?
total stuffed animals:
The next weekend, you see that the bin contains
unicorns, gorillas, striped fish, and elephants. A shipment of stuffed whales arrives. What is the probability of getting a sea animal (whale or fish) if you add whales to the bin? Express the probability as a percent.
To convert the probability from a fraction to a percent, convert the fraction into a fraction with a denominator of
You are told that the probability of selecting a stuffed alligator needs to be
. One weekend you notice there are exactly alligators left. How many total animals should be in the bin to maintain the probability of for an alligator?
total stuffed animals animals