### M101P HOMEWORK HOMEWORK 5.1

Please calculate the average population of cities in California abbreviation CA and New York NY taken together with populations over 25, To help you verify your work before submitting, the author with the fewest comments is Mariela Sherer and she commented times. Please round the answer to a whole number. The output of sh. 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:. It has been tested under Pymongo 2.

To help you verify your work before submitting, the author with the fewest comments is Mariela Sherer and she commented times. Please round the answer to a whole number. We will take these are the prefered cities to live in chosen by this instructor, given is special affection to this set of characters! Friday, 8 September Week 5: On unix, this could be done as follows: To help you verify your work before submitting, the author with the fewest comments is Mariela Sherer and she commented times.

Import it into your mongod using the following command from the command line: There is also an issue with some versions of MongoDB 3. Also, you will need a filtering step to get rid of all documents where the city does not start with a digital Friday, 8 September Week 5: If you notice that while importing, there are a few duplicates fear not, this is expected and will not affect your answer. For this set, there are only documents and zip codesand all of them are in New York, Connecticut, New Jersey, and California.

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Please use the Aggregation pipeline to solve this problem. On unix, this could be done as follows: Note that not all students in the same class have the same exact number of assessments. Prefered Cities to Live! Using the aggregation framework, calculate the sum total of people who are living in a zip code where the city starts with a digit. For this problem, we have used a subset of the data you previously used in zips.

Homwwork will take these are the prefered cities to live in chosen by this instructor, given m1101p special affection to this set of characters!

We will check that it works with validate. Please round the answer to a whole number. The output of sh.

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Note that not all students in the same class have the same exact number of assessments. Then import into your blog database as follows: 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, For purposes of keeping the Hands On shell quick, we have used a subset of the data you previously used in zips.

You will need to probably change your projection to send more info through than just that first character. Then import into your blog database as follows:. In this homeowrk you will use the aggregation framework to find the most frequent author of comments on your blog To be clear, each student’s average includes only exams and homework grades. You need to group twice to solve this problem. You must figure out the GPA that each student has achieved in a class and then average those numbers to get a class average.

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

Don’t include their quiz scores in the calculation. Let’s suppose you have a five member replica set and want to assure that writes are committed to the journal and are acknowledged by at least 3 nodes before you proceed forward.

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. After that, you just need to sort. For example, to extract the first character from the city field, you could write this pipeline:.

## MongoDB university m101p chapter 5 homework

In this homework you will build a small replica set on your own computer. To help you verify your work before submitting, the author with the fewest comments is Mariela Sherer and she commented times.

Please calculate the average population of cities in California abbreviation CA and New York NY taken together with populations over 25, For example, to extract the first digit from the city field, you could homeworl this query: You must figure out the GPA that each student has achieved in a class and then average those numbers to get a homeeork average.