Question Help Error Analysis A group of students is studying the number of left-handed people in their school.
They surveyed everyone in their school. One of the students incorrectly said that the people they
surveyed represents a sample because it only includes the people in their school. Identify the
population. What could cause the student's error?

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

2

step-by-step explanation: