Newest Data Science Questions | Wyzant Ask An Expert

06/30/25

Can you learn data analysis and data mining without coding?

Do you want to learn data analysis or data mining but feel held back because you don’t know coding? Many students wonder if it’s even possible to explore these fields without programming skills.Is... more

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Answers •2

Data Science Physical Science

06/24/25

pivot_wider() in {tidyverse}

I have a project where I need to restructure my dataframes. I am using pivot_wider but I cannot produce what I need. I need more columns to appear in the output (nut_w). Happy to hire a tutor is... more

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Data Science

06/07/25

Career Choice In Data

I need help deciding a career field. Between Data Science and Data Egineering

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Answers •1

Data Science Machine Learning/ Ai

05/06/25

I’m stuck on a machine learning homework using scikit-learn. Can someone walk me through it?

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Answers •2

Data Science Machine Learning/ Ai

05/06/25

How do I tune hyperparameters in XGBoost or Random Forest?

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Answers •1

Data Science

10/23/24

How do I read a csv file into a pandas dataframe

I have data that is formatted as a csv file, how do I read it in python?

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Answers •1

Data Science

08/19/24

System Issues with respond to offers

I am trying to respond to offers of assistance as time is of the essence, but the system seems to be hung up. This is just email? Is this normal?

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Answers •1

Data Science

07/01/24

What is External Stage in Snowflake ?

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Data Science Math Prealgebra Probability

04/01/24

PERMUTATIONS HELP: How can you arrange 9 people if Tina has to be next to Quinton OR Tatiana?

The answer is 151,200 but I am not getting that

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Answers •2

Data Science Math Prealgebra Probability

04/01/24

PERMUTATIONS HELP: When drawing 7 cards from a deck, what is the probability of drawing...

a.) 3 face cards? - answer 15.03%b.) at most 5 spaces? - answer 99.95%For a, I am doing this but this isn't right:[(12P3)(40P4)] / 52P7

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Data Science Career Development College Counseling Computer Science

03/17/24

STUCK BETWEEN MAJORS

Hey, I’m attending University next year however I am stuck between two majors. The two are Data Science and Computer Science. I have experience in both as a high schooler and enjoy both pretty... more

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Data Science Statistics Probability

02/17/24

Anyone looking for a Statistics, Data Science or Probability Tutor?

I am more than happy to help.

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Answers •1

Data Science Science Physics Physical Science

01/23/24

Do Broadband Vibrations affect the de Broglie wavelength of Lattice Like Materials (e.g Graphene)

I have a random but curious thought that I was wondering if it can be answered extensively.I would like to know what would happen if a Lattice like material (e.g Graphene) were to be exposed to an... more

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Data Science Linear Algebra

11/07/23

how do i use linear programming to solve this problem and find the constraints and variables.

You make custom T-shirts with inspirational sayings on them. You just found out about a community flea market sale that is starting tomorrow. You have just 8 hours to prepare product for this sale.... more

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Data Science

10/11/23

What conceptual model is being used if an entity-relationship diagram (ERD) is being used?

The choices are:a. the internal modelb. the physical modelc. the external modeld. the conceptual model

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Data Science

10/11/23

I need help with this question as soon as possible.

Which of the following models operate at the lowest level of abstraction and is both hardware and software dependent?a. internalb. conceptualc. externald. physical

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Answers •1

Data Science

10/11/23

I need help with this question

Laurel is designing databases and begins with an abstract view of the overall data environment. As the design comes closer to implementation, where should Laurel place her... more

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Data Science Math Business Statistics

10/08/23

Statistic Methods in Business question

The most conservative value of π (or p) you can use for proportion confidence intervals is ?

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Data Science General Computer Sql Cobol

09/21/23

What legacy Information Technology mainframe skills can you teach ?

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Answers •1

Data Science Python

07/04/23

Issue with Pandas DataFrame

There is a flaw in this codeThe code below reads the price of the symbol of a stock and then returns a set of optimal trades that can be made in the timeframe.The trades dataframe is a single... more

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Data Science Computer Computer Programming Computer Science

05/31/23

Online Resources for ML/NNs

I am a novice programmer with a bit of conceptual background in ML/NNs, but I haven't programmed much in Python. Besides tutorials like Kaggle or platforms like Coursera/Edx, what are some free... more

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Data Science

04/17/23

In python. We are using the Iris dataset

Now, it's your turn to make a Logistic Regression model, an ROC curve, and calculate some basic metrics.IMPORTANT: This time, do all model training with all four predictors, and instead of... more

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Data Science

04/05/23

Train collision

Two trains leave different stations at different times. train A leaves station A at 5 am at 60 mph, train B leaves station B at 7 am going 70 mph, and the distance between station A and B is 435... more

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Data Science Computer Science

03/20/23

Advantages and DIsadvantages of CNN and RNN Deep Learners

What are the benefits and disadvantages of convolutional (CNN) architectures as well as recurrent (RNN)architectures?

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Data Science Computer Science

03/14/23

what is the estimate?

Estimate the costs on one of the following three platforms to meet these requirements: • 400 Gb of database storage initially • 10 Gb new DB each month • 100 users • At least 2 clusters (servers)... more

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Answers •1

Can you learn data analysis and data mining without coding?

pivot_wider() in {tidyverse}

Career Choice In Data

I’m stuck on a machine learning homework using scikit-learn. Can someone walk me through it?

How do I tune hyperparameters in XGBoost or Random Forest?

How do I read a csv file into a pandas dataframe

System Issues with respond to offers

What is External Stage in Snowflake ?

PERMUTATIONS HELP: How can you arrange 9 people if Tina has to be next to Quinton OR Tatiana?

PERMUTATIONS HELP: When drawing 7 cards from a deck, what is the probability of drawing...

STUCK BETWEEN MAJORS

Anyone looking for a Statistics, Data Science or Probability Tutor?

Do Broadband Vibrations affect the de Broglie wavelength of Lattice Like Materials (e.g Graphene)

how do i use linear programming to solve this problem and find the constraints and variables.

What conceptual model is being used if an entity-relationship diagram (ERD) is being used?

I need help with this question as soon as possible.

I need help with this question

Statistic Methods in Business question

What legacy Information Technology mainframe skills can you teach ?

Issue with Pandas DataFrame

Online Resources for ML/NNs

In python. We are using the Iris dataset

Train collision

Advantages and DIsadvantages of CNN and RNN Deep Learners

what is the estimate?

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