To be clear, each student’s average includes only exams and homework grades. Note that not all students in the same class have the same exact number of assessments. For this problem, assume that a city name that appears in more than one state represents two separate cities. In this assignment you will use the aggregation framework to find the most frequent author of comments on your blog The answer for CT and NJ using this data set is

Then import into your blog database as follows:. The documents look like this: Download the handout and mongoimport. We will take these are the prefered cities to live in chosen by this instructor, given is special affection to this set of characters! Who’s the easiest grader on campus? Try for your self. Import it into your mongod using the following command from the command line:.

Please use the Aggregation pipeline to solve this problem. Note that not all students in the same class have the same exact number of assessments.

Check all that apply. Some moongodb have three homework assignments, etc.

We will be using a data set similar to ones we’ve used before. A city might have multiple zip codes. For example, to extract the first character from the city field, you could write this pipeline:.

The documents look like this: Start by downloading the handout zip file for this problem. To help you verify your nongodb before submitting, the author with the fewest comments is Mariela Sherer and she commented times. Prefered Cities to Live! Friday, 8 September Week 5: You will be using the zip code collection data set, which you will find in the ‘handouts’ link in this page.

We will take these are the prefered cities mongodbb live in chosen by this instructor, given is special affection to this set of characters! Choose the answer below.

# Mongodb homework

Crunching the Zipcode dataset Please calculate the average population of cities in California abbreviation CA and New York NY taken together with populations over 25, Your task is to calculate the class with the best average student performance. For this problem, we have used a subset of the data you previously used in homwwork.

Try for your self. Import it into your mongod using the following command from the command line:. If you notice that while importing, there are a few duplicates fear not, this is expected and will not mongpdb your answer.

Also, you will need a filtering step to get rid of all documents where the city does not start with the mngodb set of initial characters. This involves calculating an average for each student in each class of all non-quiz assessments and then averaging those numbers to get a class average.

Download the handout and mongoimport. Once you’ve generated your aggregation query and found your answer, select it from the choices below.

To be clear, each student’s average includes only exams and homework grades.

## FacultÃ© des Lettres et des Sciences Humaines ben M’Sik Casablanca –

Nongodb need to group twice to solve this problem. For this set, there are only documents and zip codesand all of them are in New York, Connecticut, New Jersey, and California. You must figure out the GPA that each student has achieved in a class and then average those numbers to get a class average. In this problem you will calculate the number of people who live in a zip code in the US where the city starts with one of the following characthers:.

Those students achieved a class average of You will need to probably change your projection to send more info through than just that first character.

After that, you just need to sort. Don’t include their quiz scores in the calculation. In this assignment you will use the aggregation framework to find the most frequent author of comments on your blog The answer for CT and NJ using this data set is