Question

A poll agency reports that 27 % of teenagers aged 12-17 own smartphones. A random sample of 85 teenagers is drawn. Round your answers to at least four decimal places as needed.

Answer 1

Mean = цр = 0.27

Explanation:

Note: The full question is attached as picture below

Given that, p = 27 = 0.27 and n = 85

цр = P

Mean = цр = 0.27