Question

teacher voice – you can use information given in graphs to solve real-world problems.
example 5 – solving a real-life problem
in the united states, a survey of 2,184 adults ages 18 and over found that 1,328 of them have at least one pet. the types of pets these adults have are shown in the figure. what is the probability that a pet-owning adult chosen at random owns a fish?
solution
$p(\text{pet-owning adult owns a fish}) = \frac{146}{1328} \approx 0.11$
the probability that a pet-owning adult chosen at random has a bird is $\approx 0.11$, or about 11%.
video lesson 5.1 example 5 - solving a real-life problem

1. use the survey and data display in example 5 above. what is the probability that a pet-owning adult chosen at random has a bird?

Explanation:

Step1: Identify relevant numbers

From the graph, number of adults with bird is 93. Total pet - owning adults is 1328.

Step2: Calculate probability

Probability \( P=\frac{\text{Number of adults with bird}}{\text{Total pet - owning adults}}=\frac{93}{1328}\approx0.07 \)

Answer:

The probability that a pet - owning adult chosen at random has a bird is approximately \( 0.07 \) (or about \( 7\% \)).