# MONGODB M101P HOMEWORK 5.1 ANSWERS

Then import into your blog database as follows:. A city might have multiple zip codes. Please round the answer to a whole number. For this problem, assume that a city name that appears in more than one state represents two separate cities. Now use the aggregation framework to calculate the author with the greatest number of comments. 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. If you notice that while importing, there are a few duplicates fear not, this is expected and will not affect your answer.

Different states might have the same city name. Choose the answer below. The answer for CT and NJ using this data set is If you notice that while importing, there are a few duplicates fear not, this is expected and will not affect your answer. Please choose your answer below for the most prolific comment author:.

Different states might have the same city name.

## Mongodb M101J Homework 1 1 Answers

If you notice that while importing, there are a few duplicates fear not, this is expected and will not affect your answer. For homeework 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.

Import it into your mongod using the following command from the command line:. 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.

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A city might have multiple zip codes. For example, to extract the first character from the city field, you could write this pipeline:. Try for your self.

Choose the answer below. You must figure out the GPA that each student has achieved in a class and then average those numbers to get a class average. We will take these are the prefered cities to live in chosen by this instructor, given is special affection to this set of characters!

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

You need to group twice to solve this problem. You will be using the zip code collection data set, which you will find in the ‘handouts’ link in this page.

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:. We will be using a data set similar to ones we’ve hhomework before. Your task is to calculate the class with the best average student performance.

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, The answer for CT and NJ using this data set is Note that not all students in the same class have the same exact number of assessments. This involves calculating an average for each student in each class of all non-quiz assessments and then averaging those numbers answerw get a class average. Please round the answer to a whole number.

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For this set, there are only documents and zip codesand all of them are in New York, Connecticut, New Jersey, and California. In this assignment you will use the aggregation framework to find the most frequent author of comments on your blog Start by downloading the handout zip file for this problem.

# Mongodb MJ Homework 1 1 Answers

Prefered Cities to Live! At the end I just want to say if you want to learn mongoDB, First practice with youself. Who’s the easiest grader on campus? Friday, 8 September Week 5: The documents look like this: Those students achieved a class average of Once you’ve generated your aggregation query and found your answer, select it from the choices below.

Some students have three homework assignments, etc. Now use the aggregation framework to calculate the author with the greatest number of comments. You will need to probably change your projection to send more info through than just that first character.