Question

audrey is studying how the distance from the eye chart affects the number of letters that are recognized on a line. she takes three students and has them stand 5 feet, 10 feet, and 20 feet away from the chart. she then has them read different letters and records how many they get right. hypothesis: independent variable: dependent variable:

Explanation:

The independent variable is the factor that is changed or manipulated in an experiment. Here, it's the distance from the eye - chart. The dependent variable is what is being measured as a result of the change in the independent variable, which is the number of letters recognized. A possible hypothesis could be that as the distance from the eye - chart increases, the number of letters recognized on a line decreases.

Answer:

Hypothesis: As the distance from the eye - chart increases, the number of letters recognized on a line decreases.
Independent variable: Distance from the eye - chart.
Dependent variable: Number of letters recognized on a line.