A random sample of 2000 adults showed that 1120 of them have stopped at least once on the Internet. What is the (approximate) probability that a randomly selected adult has stopped on the Internet?
Give your answer in 4 decimal places.
1120/2000 = 0.5600
1.79
To find the probability that a randomly selected adult has stopped on the Internet, we need to calculate the proportion of adults in the sample who have stopped on the Internet.
Proportion = (Number of adults who have stopped on the Internet) / (Total number of adults in the sample)
= 1120 / 2000
= 0.56
Therefore, the approximate probability that a randomly selected adult has stopped on the Internet is 0.5600.
To calculate the approximate probability, you need to divide the number of adults who have stopped on the Internet by the total number of adults in the sample.
1. Determine the number of adults who have stopped on the Internet: From the given information, you know that 1,120 adults have stopped on the Internet.
2. Determine the total number of adults in the sample: The problem states that the sample consists of 2,000 adults.
3. Divide the number of adults who have stopped on the Internet by the total number of adults in the sample:
P(stopped on Internet) = 1120/2000
4. Calculate the probability:
P(stopped on Internet) = 0.56
Therefore, the approximate probability that a randomly selected adult has stopped on the Internet is 0.5600 (rounded to 4 decimal places).