SCIE 211 Lab 3: Graphing and DataWorksheetPre-lab Questions:1. When should you use each of the following types of graphs? Fill answers in the table below.Type of Graph Used to showLine graphScatter plotBar graphHistogramPie Chart2. Several ways in which we can be fooled or misled by a graph were identified in the Lab 3Introduction. Find two examples of misleading graphs on the Internet and paste them below. Besure to identify why each graph is misleading. Data Charts:Circumference vs. Diameter for circular objectsDiameter Can 1 (cm) Can 2 (cm) Can 3 (cm)Trial 1Trial 2Trial 3MeanCircumference Can 1 (cm) Can 2 (cm) Can 3 (cm)Trial 1Trial 2Trial 3MeanScatter Plot Graph – Circumference Vs. DiameterIdentify 2 points of the Trendline.Y1 = ____ Y2 = _X1 = X2 = _____Calculate the Slope of the Trendline = Post-lab Questions:1. Answer the questions below. You will need to use the following equation to answer part b.Circumference = ( π )(Diameter)a. What was the calculated value for the Slope of your Trendline?b. What is the expected value for the Slope of your Trendline?c. Calculate the % error.% error = (measured value – true value) x 100%True valued. Based on your % error, how good were your measurements? What are other sources of

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.2: Representing Data

Problem 12PPS

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SCIE 211 Lab 3: Graphing and Data
Worksheet
Pre-lab Questions:
1. When should you use each of the following types of graphs? Fill answers in the table below.
Type of Graph Used to show
Line graph
Scatter plot
Bar graph
Histogram
Pie Chart
2. Several ways in which we can be fooled or misled by a graph were identified in the Lab 3
Introduction. Find two examples of misleading graphs on the Internet and paste them below. Be
sure to identify why each graph is misleading.

Data Charts:
Circumference vs. Diameter for circular objects
Diameter Can 1 (cm) Can 2 (cm) Can 3 (cm)
Trial 1
Trial 2
Trial 3
Mean
Circumference Can 1 (cm) Can 2 (cm) Can 3 (cm)
Trial 1
Trial 2
Trial 3
Mean
Scatter Plot Graph – Circumference Vs. Diameter
Identify 2 points of the Trendline.
Y1 = ________ Y2 = _________
X1 = ________ X2 = _________
Calculate the Slope of the Trendline =

Post-lab Questions:
1. Answer the questions below. You will need to use the following equation to answer part b.
Circumference = ( π )(Diameter)
a. What was the calculated value for the Slope of your Trendline?
b. What is the expected value for the Slope of your Trendline?
c. Calculate the % error.
% error = (measured value – true value) x 100%
True value
d. Based on your % error, how good were your measurements? What are other sources of

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