Individual Coursework Feedback

Thanks all for your efforts in doing the individual coursework!

You can find the solution here.

The performance was really good, below are some summary statistics of your marks:

• mean: 84.767068
• standard deviation: 18.338494
• min: 0.00
• 25th percentile: 80.00
• 50th percentile: 89.00
• 75th percentile: 98.00
• max: 100.00

Here is a plot of the distribution of the marks:

Here is a detailed summary of the various things I checked for for each question as well as the percentage of students who were correct:

• 1a check answer is an equation: 96.80 %
• 1a check output uses dsolve as opposed to hard coding it: 98.40 %
• 1a check answer satisfies differential equation: 96.40 %
• 1b check answer is an equation: 96.80 %
• 1b check output uses dsolve as opposed to hard coding it: 98.40 %
• 1b check answer satisfies differential equation: 92.80 %
• 1c check answer is an equation: 87.20 %
• 1c check output uses dsolve as opposed to hard coding it: 98.00 %
• 1c check answer satisfies differential equation: 87.20 %
• 1d check answer is an equation: 98.00 %
• 1d check output uses dsolve as opposed to hard coding it: 98.00 %
• 1d check output satisfies differentia equation: 81.20 %
• 1d check answer satisfies differential equation: 94.40 %
• 2a check general solution is a set: 70.00 %
• 2a check solution excludes 0: 72.00 %
• 2a number of solutions for the cubic must be three: 69.20 %
• 2b expected answer for equation: 91.60 %
• 3a check function has a docstring: 52.00 %
• 3a check function is not defined for correct range of numbers: 90.00 %
• 3a check specific values of function: 67.60 %
• 3b check correct value for n equals 5: 84.00 %
• 3c exact value for p equals one half: 82.40 %
• 3c checkout output is approximately correct: 82.40 %
• 3d checkout output is correct set: 81.60 %
• 3d check answer is obtained using solveset as opposed to hard coding it: 89.60 %
• 4a correct value of determinants: 89.20 %
• 4a determinants is a list: 76.00 %
• 4a input calculated using for loop: 75.60 %
• 4b correct value of number_of_rows: 89.60 %
• 4b check correct type of output: 80.40 %
• 4c check output is calculated using a for loop: 79.60 %
• 4c makes use of correlation calculation as opposed to hard coding it: 94.00 %
• 4c value is correct to 6 decimal places: 87.60 %
• 4c check answer is consistent with values of determinants and number_of_rows: 85.20 %
• 4d make use of linear_regression as opposed to hard coding it: 85.20 %
• 4d check answer is consistent with values of determinants and number_of_rows: 50.00 %

Some common errors:

• In question 4d students didn’t order the arguments correctly for the calculation of the linear regression.
• Tuples where used when lists were requested.
• Students didn’t include a docstring when defining a function.

On that note I appreciated two docstrings for their humour:

1. docstring

2. This is my favourite:

   this is a docstring dont mark me down :D
   
   Personally I don't understand how a man whos forte is game theory - whatever that is
   could possiby think a movie about saving a private named Ryan is an optimal strategy
   given that so many men died to send him home...
   
   I would have unsaved private Ryan - personally.
   
   if there is any doubt though this function generates the sequence stated in the question.
   
   .................. but it does not bring back Captain John Miller.