Question

5 mark for review scott selected 20 employees at random from all 400 employees at a company. he found that 16 of the employees in this sample are enrolled in exactly three professional development courses this year. based on scotts findings, which of the following is the best estimate of the number of employees at the company who are enrolled in exactly three professional development courses this year? a 4 b 320 c 380 d 384

Explanation:

Step1: Find sample proportion

$\text{Proportion} = \frac{16}{20} = 0.8$

Step2: Scale to total employees

$\text{Estimate} = 0.8 \times 400$

Answer:

B. 320