Final answer:
The expected number of left-handed students in a class of 28, assuming 16% of the population is left-handed, is calculated by multiplying 28 by 0.16, which gives approximately 4.48. This implies you might expect around 4 or 5 left-handed individuals in the class.
Step-by-step explanation:
To calculate the expected number of left-handed students in a class of 28, we use the given percentage of left-handed individuals in the population. The question states that approximately 16% of the population is left-handed. To find the expected number, we multiply the total number of students, 28, by the percentage of left-handed people expressed as a decimal (16% is 0.16 when converted to a decimal).
Expected number = Total students × Percentage (in decimal form)
Expected number = 28 × 0.16
Expected number = 4.48
Therefore, the expected number of left-handed students in the class is approximately 4.48, rounded to three decimal places. Since we can't have a fraction of a student, in practice, this means you might expect either 4 or 5 left-handed students in the class, depending on how the numbers work out in reality.