A survey found at 30 students in random sample of 150 students at the local high school own a portable CD player. The school has 1510 students. Predict how many of the students in the school own a portable CD player
30 / 150 = x / 1510
To predict how many students in the entire school own a portable CD player, you can use the concept of proportions.
First, calculate the proportion of students in the random sample who own a portable CD player.
Proportion = (Number of students in the random sample who own a portable CD player) / (Total number of students in the random sample)
Proportion = 30 / 150 = 0.2
Next, apply this proportion to the total number of students in the school to estimate how many students in the entire school own a portable CD player.
Estimated number of students who own a portable CD player = Proportion * Total number of students in the school
Estimated number of students who own a portable CD player = 0.2 * 1510 = 302
Therefore, based on this prediction, it is estimated that around 302 students in the school own a portable CD player.