Question

gustavo tested 1000 calculators to see if any were defective. the company claimed that the probability of a defective calculator was 1% per 1000 calculators. gustavo found 15 defective calculators out of 1000. what was the predicted frequency? predicted frequency =(# of trials)(theoretical probability)=(1000)(0.01) the predicted frequency was what was the relative frequency? relative frequency = observed frequency / total number of trials the relative frequency was 0.15% 1% 1.5% 15%

Explanation:

Step1: Calculate predicted frequency

Predicted Frequency = (Number of trials)×(Theoretical probability) = 1000×0.01 = 10

Step2: Calculate relative frequency

Relative Frequency=$\frac{\text{Observed frequency}}{\text{Total number of trials}}=\frac{15}{1000}= 0.015 = 1.5\%$

Answer:

Predicted Frequency: 10
Relative Frequency: 1.5%