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4 years ago

12

Why is it important to use random assignment when determining which research participants will comprise the different treatment

groups in the study?

Computers and Technology

1 answer:

Temka [501]4 years ago

8 0

Explanation:

using random assignment keeps the study from becoming biased or untestable. it gives the results validity.

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Nina's grades could be better. She gets about five hours of sleep every weeknight and ten hours per night on weekends. How much

aliya0001 [1]

Answer:

a research paper

Explanation:

8 0

3 years ago

Read 2 more answers

Create a series called 'directors' that contains each director's name and his or her average rating. Print out the type of your

sasho [114]

Using the computational language in python it is possible to write a code that we will use graphics to organize the names of the directors and the films they made.

<h3>Writing code in python:</h3>

<em>import pandas as pd</em>

<em>df = pd.read_csv('all_data/movie_metadata.csv')</em>

<em>print('Shape: ',df.shape)</em>

<em>df.head()</em>

<em>name = df[['director_name','imdb_score']] </em>

<em>directors = name.groupby(['director_name']).mean() </em>

<em>directors = directors.reset_index() </em>

<em>directors = directors.stack()</em>

<em>print(directors,'\n')</em>

<em>print(type(directors),'\n')</em>

<em>print(directors[directors=='Steven Spielberg'],'\n')</em>

<em>print(directors[102]['imdb_score'])</em>

<em>miyazaki = df[df['director_name'] == 'Hayao Miyazaki']['movie_title']</em>

<em>print(miyazaki)</em>

<em>pivot_agg = pd.pivot_table(df,values='imdb_score', index=['country'], columns=['director_name'],aggfunc=np.median)</em>

<em>pivot_agg</em>

<em>gladiator_duration = df[df['movie_title']=='Gladiator\xa0']['duration'] </em>

<em>gladiator_duration</em>

See more about python at brainly.com/question/18502436

#SPJ1

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2 years ago

What is the best way to learn python?

iren [92.7K]

Stage 1: Basic Language

Stage 2: Problem Solving

Stage 3: Pick a Small Project, and Build a Program

Stage 4: Learn Github

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4 years ago

Investigators pull out a sniffer to use at the scene of a fire. What is the sniffer designed to do?

Goryan [66]

Answer:

to find key edvadence

Explanation:

they take dogs to smell out key things that could start a fire as in a match kind like other dogs that are assigened tfing drugs and etc heres more infomation i found " Dog Fire Safety In addition to decreasing the risks of your dog actually starting a house fire, employing a few safety tips can greatly increase your canine pal's chance of survival if a fire does occur for any reason." i would put it in your own words just because its wordy .

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3 years ago

Digital cameras often have trouble with auto white balance, which can result in unattractive blue, orange, or green casts.

mariarad [96]

The statement about digital cameras often having trouble with auto white balance which can result in unattractive blue, orange or green casts is; A: True.

Let us first define white balance(WB).

White balance is defined as the process of removing unrealistic color casts, in a way that will make the objects that appear to be white in person to also be appear white in the photo.

Now, for a camera to have the right white balance, it will have to consider the "color temperature" of a light source i.e the relative warmth of white light.

Finally humans eyes are very good at judging which is white under different light intensities or sources, but that is not the case with digital cameras because they struggle with auto white balance and that could lead to different colors like unattractive blue, orange, or even green color casts.

Read more about Camera pictures at; brainly.com/question/22862481

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3 years ago