SOCR Courses 2010 2011 Stat13 1 Lab3b - Revision history

IvoDinov at 21:46, 30 January 2011

2011-01-30T21:46:24Z

IvoDinov: /* Part 1: Histograms */

2010-11-09T22:04:52Z

‎Part 1: Histograms

IvoDinov: Created page with '== Stats 13.1 - Laboratory Activity 3== ===Summary=== This lab is going to serve as a review of what we did in the previous three labs. ==…'

2010-11-09T22:03:35Z

Created page with '== Stats 13.1 - Laboratory Activity 3== ===Summary=== This lab is going to serve as a review of what we did in the previous three labs. ==…'

New page

== [[SOCR_Courses_2010_2011_Stat13_1 | Stats 13.1]] - Laboratory Activity 3==

===Summary===
This lab is going to serve as a review of what we did in the previous three labs.

====Part 1: Histograms====
Follow these steps:

# Click the Charts tab on the [http://www.socr.ucla.edu SOCR website], and click on the arrow next to Bar Charts then XYPlots. Then click on '''HistogramChartDemo''' and go to the DATA tab.
# Open up another window (or another tab in the same browser window), go to the [http://www.socr.ucla.edu/htmls/SOCR_Modeler.html SOCR Modeler], and click on the '''Data Generation''' button.
# Choose the '''Normal Distribution''' from the drop-down menu. Let’s make the sample size 100 and standard deviation 75. Mean stays 0.
#Check the '''Raw Data''' check-box on the left side – this step is the simplest yet most important.
# Hit the '''Sample''' button and click on the Data tab next to the Graphs tab.
# Select all the data by holding ''Apple+A'' for Macs or ''Ctrl+A'' for PC. Press the COPY button at the top.
# Go back to the window with the '''HistogramChartDemo'''. Click on the '''DATA''' tab and press the '''PASTE''' button on the left hand side of the screen.
# Click on the '''MAPPING''' tab, and click on '''Add''' when C1 is highlighted. Then click on '''UPDATE_CHART''' at the top.
# Click on the '''GRAPH''' tab and play around with the bin size at the bottom. Take a picture of the histogram you created by using the Print Screen command. Comment on the changes you see as you increase/decrease the bin size.

====Part 2: Probability====
# Go to the [http://www.socr.ucla.edu/htmls/SOCR_Experiments.html SOCR Experiments]. We’re going to do the [http://socr.ucla.edu/htmls/exp/Coin_Die_Experiment.html Coin Die Experiment] again, so select it from the drop-down menu.
# Set the distribution of both dice to skewed left (6 should have the most probability).
# Set p = 0.8 and run 100 trials. Count the number of 6’s and take a picture of the graph.
# Repeat Step 3 with p = 0.2. Make sure you take a picture.
# Change the distribution of only the green die to skewed right (6 should have the least probability), and repeat steps 3 and 4. You should comment on changes and have 4 pics.

====Step 3: Binomial Distribution====
# Go to the [http://www.socr.ucla.edu/htmls/SOCR_Experiments.html SOCR Experiments]. Select [http://socr.ucla.edu/htmls/exp/Binomial_Coin_Experiment.html Binomial Coin Experiment].
# Make sure n=20 and p=0.50.
# Choose the Stop 10 option and press fast-forward. This will generate 10 simulations of 20 flips of the coin. Take a picture.
# Choose the Stop 100 option and press fast-forward. This will generate 100 simulations of 20 flips of the coin. Take a picture. Compare the histogram with the histogram from Step 3.
# Compare the histogram with the histogram of normal distribution.

====Step 4: Coin Toss====
# This portion does not require you to do any calculations on SOCR.
# '''Without''' using the equations of binomial distribution, solve the following problem: Let X equal the number of heads when you flip the coin 3 times. Calculate P(X>=2).

<hr>

{{translate|pageName=http://wiki.stat.ucla.edu/socr/index.php?title=SSOCR_Courses_2010_2011_Stat13_1_Lab3b}}

@@ Line 4: / Line 4: @@
 This lab is going to serve as a review of what we did in the previous three labs.
-====Part 1: Histograms====
+===Part 1: Histograms===
 Follow these steps:
@@ Line 17: / Line 17: @@
 # Click on the '''GRAPH''' tab and play around with the bin size at the bottom.  Take a picture of the histogram you created by using the Print Screen command.  Comment on the changes you see as you increase/decrease the bin size.
-<hr>
+===Part 2: Probability===
 # Go to the [http://www.socr.ucla.edu/htmls/SOCR_Experiments.html SOCR Experiments].  We’re going to do the [http://socr.ucla.edu/htmls/exp/Coin_Die_Experiment.html Coin Die Experiment] again, so select it from the drop-down menu.
 # Set the distribution of both dice to skewed left (6 should have the most probability).
@@ Line 29: / Line 24: @@
 # Change the distribution of only the green die to skewed right (6 should have the least probability), and repeat steps 3 and 4.  You should comment on changes and have 4 pics.
-====Step 3: Binomial Distribution====
+===Step 3: Binomial Distribution===
 # Go to the [http://www.socr.ucla.edu/htmls/SOCR_Experiments.html SOCR Experiments].  Select [http://socr.ucla.edu/htmls/exp/Binomial_Coin_Experiment.html Binomial Coin Experiment].
 # Make sure n=20 and p=0.50.
@@ Line 36: / Line 31: @@
 # Compare the histogram with the histogram of normal distribution.
-====Step 4: Coin Toss====
+===Step 4: Coin Toss===
 # This portion does not require you to do any calculations on SOCR.
 # '''Without''' using the equations of binomial distribution, solve the following problem: Let X equal the number of heads when you flip the coin 3 times.  Calculate P(X>=2).

@@ Line 7: / Line 7: @@
 Follow these steps:
-# Click the Charts tab on the [http://www.socr.ucla.edu SOCR website], and click on the arrow next to Bar Charts then XYPlots.  Then click on '''HistogramChartDemo''' and go to the DATA tab.
+# Go to the [http://socr.ucla.edu/htmls/SOCR_Charts.html SOCR Charts], and click on the arrow next to Bar Charts then XYPlots.  Then click on '''HistogramChartDemo''' and go to the DATA tab.
 # Open up another window (or another tab in the same browser window), go to the [http://www.socr.ucla.edu/htmls/SOCR_Modeler.html SOCR Modeler], and click on the '''Data Generation''' button.
 # Choose the '''Normal Distribution''' from the drop-down menu.  Let’s make the sample size 100 and standard deviation 75.  Mean stays 0.
@@ Line 16: / Line 16: @@
 # Click on the '''MAPPING''' tab, and click on '''Add''' when C1 is highlighted.  Then click on '''UPDATE_CHART''' at the top.
 # Click on the '''GRAPH''' tab and play around with the bin size at the bottom.  Take a picture of the histogram you created by using the Print Screen command.  Comment on the changes you see as you increase/decrease the bin size.
 ====Part 2: Probability====