Different states might have the same city name. For this set, there are only documents and zip codes , and all of them are in New York, Connecticut, New Jersey, and California. 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. To be clear, each student’s average includes only exams and homework grades. Your task is to calculate the class with the best average student performance. Check all that apply. Also, you will need a filtering step to get rid of all documents where the city does not start with the select set of initial characters.

Please round the answer to a whole number. Different states might have the same city name. Import it into your mongod using the following command from the command line:. Those students achieved a class average of Choose the answer below.

We will be using a data set similar to ones we’ve used before.

Check all that apply. To help you verify your work before submitting, the author with the fewest comments is Mariela Sherer and she commented times. Once you’ve generated your aggregation query and found your answer, select it from the choices below.

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:. Prefered Cities to Live!

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. 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, Homeaork use the aggregation framework to calculate the mongpdb with the greatest number of comments.

Then import into your blog database as follows:. Who’s the easiest grader on campus?

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To be clear, each student’s average includes only exams and homework grades. Import it into your mongod using the following command from the command line:.

You must figure out the GPA that each student has achieved in a class and then average those numbers to get a class average. Also, you will need a filtering step to get rid of all documents where the city does not start with the select set of initial characters.

Mongob task is to calculate the class with the best average student performance.

A city might have multiple zip codes. You need to group twice to solve this problem. Those students achieved a class average of For example, to extract the first character from the city field, you could write this pipeline:. Friday, 8 September Week mongovb Please round the answer to a whole number.

For this problem, we have used a subset of the data you previously used in zips. The documents look like this: At the end I just want to say if you want to learn mongoDB, First 54. with youself. Choose the answer below. Download the handout and mongoimport.

# Study IQ World: Week 5 : AGGREGATION FRAMEWORK : MP: MongoDB for Developers

Start by downloading the handout zip file for this problem. Try for your self. You will be using the zip code collection data set, which you will find in the ‘handouts’ link in this page. Homeworkk this problem, assume that a city name that appears in more than one state represents two separate cities.

# MongodbChamps: MJ: MongoDB for Java Developers Homework

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 Please choose your answer below for the most prolific comment author:.

Some students have three homework assignments, etc.