A room has three lightbulbs. Each one has a 14%
probability of burning out within the month. Write each probability as a percentage.
What is the probability that all three will be lit at the end of the month?
Each lightbulb has a probability of 86% (100%-14%) of not burning out within the month.
To find the probability that all three will be lit at the end of the month, we multiply the probabilities of each individual bulb.
86% x 86% x 86% = 64.5%
Therefore, the probability that all three lightbulbs will be lit at the end of the month is 64.5%.