Python Programming: An Introduction to Computer Science
3rd Edition
ISBN: 9781590282779
Author: John Zelle
Publisher: Franklin Beedle & Associates
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Chapter 9, Problem 14PE
Program Plan Intro
Program plan:
- Import the required packages
- In the “main()” function,
- Generate a prompt to take the user input.
- Create the object of “GraphWin()”.
- Set the coordinates by calling the function “setCoords()”
- A loop is initialized for “i” to be less than 5.
- Call the function named “randWalk()”.
- The function named “randWalk()” is defined and inside it,
- Create the object of “Point()”.
- Initialize a loop to get the x and y coordinates.
- Store the x-coordinate value derived in x variable.
- Store the y-coordinate value derived in y variable.
- Call the function named “simOneStep()”.
- Draw the line with the use of function “draw()”.
- Create the object of “Line()”.
- Draw the line with the use of function “draw()”.
- Assign the value of “point1” to “point2”.
- The function named “simOneStep()” is defined and inside it,
- Calculate the angle between two axis and store in variable “angle”.
- Calculate the position of x axis.
- Calculate the position of y axis.
- Create the object of “Point()”.
- Return the value stored in variable “point”.
- This code executes the main directly.
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Python programming:
A robot moves in a plane starting from the original point (0,0). The robot can move
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In various applications, you are often asked
to compute the mean and standard
deviation of data. The mean is simply the
average of the numbers. The standard
deviation is a statistic that tells you how
tightly all the various data are clustered
around the mean in a set of data. For
example, what is the average age of the
students in a class? How close are the ages?
If all the students are the same age, the
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Write a program that prompts the user to
enter any number of values into a double
array, and then calculates and displays the
mean and standard deviations of these
numbers using the following formulas:
(z - mean)
z+z3+ *** +zn deviation =
mean =
n-1
Required Methods
You must write your program so that the
following methods are defined/implemented
and used (called):
• /* Compute the deviation of
double values */
public static double
deviation (double[] x)
• /* Compute the mean of an array
of double values */
public static double
mean (double[] x)
Sample Run (user input…
In various applications, you are often asked
to compute the mean and standard
deviation of data. The mean is simply the
average of the numbers. The standard
deviation is a statistic that tells you how
tightly all the various data are clustered
around the mean in a set of data. For
example, what is the average age of the
students in a class? How close are the ages?
If all the students are the same age, the
deviation is 0.
Write a program that prompts the user to
enter any number of values into a double
array, and then calculates and displays the
mean and standard deviations of these
numbers using the following formulas:
mean)?
2i +x2 + ..
+ xn
i=1
i=1
mean =
deviation =
п - 1
Chapter 9 Solutions
Python Programming: An Introduction to Computer Science
Ch. 9 - Prob. 1TFCh. 9 - Prob. 2TFCh. 9 - Prob. 3TFCh. 9 - Prob. 4TFCh. 9 - Prob. 5TFCh. 9 - Prob. 6TFCh. 9 - Prob. 7TFCh. 9 - Prob. 8TFCh. 9 - Prob. 9TFCh. 9 - Prob. 10TF
Ch. 9 - Prob. 1MCCh. 9 - Prob. 2MCCh. 9 - Prob. 3MCCh. 9 - Prob. 4MCCh. 9 - Prob. 5MCCh. 9 - Prob. 6MCCh. 9 - Prob. 7MCCh. 9 - Prob. 8MCCh. 9 - Prob. 9MCCh. 9 - Prob. 10MCCh. 9 - Prob. 2DCh. 9 - Prob. 3DCh. 9 - Prob. 1PECh. 9 - Prob. 2PECh. 9 - Prob. 3PECh. 9 - Prob. 4PECh. 9 - Prob. 5PECh. 9 - Prob. 6PECh. 9 - Prob. 7PECh. 9 - Prob. 8PECh. 9 - Prob. 9PECh. 9 - Prob. 10PECh. 9 - Prob. 11PECh. 9 - Prob. 12PECh. 9 - Prob. 13PECh. 9 - Prob. 14PE
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