What is the main disadvantage of non-probability samples?

Answer and Step-by-step explanation:

The main disadvantage of non-probability sampling is that it's not possible to know how well you are representing the population.

In addition to that, you can't calculate confidence intervals and margins of error. This is why, if at all possible, one should always consider probability sampling methods first.

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,