Lesson 12 So, You Say There’s a Chance? Practice Understanding
Graph each complex number on the same complex plane. Let the point be the terminal point of a vector with the initial point being at the origin. Label each vector using vector notation.
. Graph the sum on the complex plane.
A local newspaper releases results of a poll of residents to see what proportion approve of the job the city mayor is doing. The article reports that
Can you conclude that
Identify the margin of error for this poll, then interpret the meaning of the margin of error.
A company of several thousand employees is interested in the average wage it is paying. After sampling
Find the margin of error, then interpret the meaning of the margin of error.
The CEO of the company is wondering how competitive its wages are with a competing company. He finds a report online that says a sample of
The polar coordinates
Graph each point in the rectangular plane.
Convert the points from rectangular to polar coordinates. Then graph the points in the polar plane.
Compare the location of the points in the rectangular plane to the location of the points in the polar plane relative to the