Answer:
Based on the information given, we can estimate the number of students who own exactly two internet-compatible devices as follows:
If Brianna surveyed a random sample of 150 students out of a total of 480 students in her school, we could assume that the sample is representative of the population. Let p be the proportion of students in the population who own exactly two internet-compatible devices.
We can estimate p by calculating the proportion of students in the sample who own exactly two internet-compatible devices. Let x be the number of students in the sample who own exactly two internet-compatible devices. Then we have:
p ≈ x/150
We can use this estimate of p to estimate the number of students in the population who own exactly two internet-compatible devices. Let N be the total number of students in the population who own exactly two internet-compatible devices. Then we have:
N ≈ p * 480
Substituting the estimate of p, we get:
N ≈ (x/150) * 480
Simplifying, we get:
N ≈ 3.2x
Therefore, we can estimate that approximately 3.2 times the number of students in the sample who own exactly two internet-compatible devices also own exactly two internet-compatible devices in the population. If, for example, the sample proportion is 0.2 (or 20%), then we can estimate that approximately 3.2 * 0.2 * 480 = 153.6 students in the population own exactly two internet-compatible devices.
Explanation: