To assess attitudes towards issues that affect the residents of a village, the village randomly chose 800 families to participate in a survey of life attitudes. the village received 628 completed surveys. what is the sample proportion of completed surveys.

a. 0.785

b. 0.628

c.0.886

d.1.274

a. 0.785

Step-by-step explanation:

The sample proportion (Sp) of completed surveys is given by the ratio of families that completed the survey (C) to the total number of families selected to participate in the survey of life attitudes (N).

The sample proportion of completed surveys is 0.785

180°

step-by-step explanation:

sum of equilateral triangle=180°

< n=60°

< m=120°°[angle supplementary of equilateral angle]

< m+< r+< x=360°(sum of exterior angle of triangle)