Data Analysis Challenge

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Test your data skills

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Animashaun Muhydeen

Nigeria

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Froggy Jumps Data Analysis ChallengeVersión en línea Test your data skills por Animashaun Muhydeen 1 What is the primary goal of exploratory data analysis (EDA)? a To prove a hypothesis b To summarize main characteristics of the data c To collect new data for experiments 2 Which measure best represents the center of a skewed data set? a Mean b Mode c Median 3 What does standard deviation describe in a data set? a Central tendency b Frequency of values c Variability around the mean 4 If two variables move together in the same direction, they are: a Negatively correlated b Positively correlated c Uncorrelated 5 What is a p-value used for in hypothesis testing? a Shows effect size b Measures data quality c Indicates evidence against the null hypothesis 6 Which visualization is best for showing distribution of a continuous variable? a Bar chart b Pie chart c Histogram 7 What is sampling in data analysis? a Transforming all data points b Creating synthetic data only c Choosing a subset of a population for analysis 8 Which data cleaning step addresses missing values? a Ignoring them b Imputation or removal c Normalization only 9 What does correlation not imply in data analysis? a Causation b Strength of association c Direction of relationship 10 Which measure is used to compare two data sets’ means accounting for sample size? a Chi-square b t-statistic c ANOVA F-value

Froggy Jumps

Data Analysis ChallengeVersión en línea

Test your data skills

por Animashaun Muhydeen

What is the primary goal of exploratory data analysis (EDA)?

To prove a hypothesis

To summarize main characteristics of the data

To collect new data for experiments

Which measure best represents the center of a skewed data set?

Mean

Mode

Median

What does standard deviation describe in a data set?

Central tendency

Frequency of values

Variability around the mean

If two variables move together in the same direction, they are:

Negatively correlated

Positively correlated

Uncorrelated

What is a p-value used for in hypothesis testing?

Shows effect size

Measures data quality

Indicates evidence against the null hypothesis

Which visualization is best for showing distribution of a continuous variable?

Bar chart

Pie chart

Histogram

What is sampling in data analysis?

Transforming all data points

Creating synthetic data only

Choosing a subset of a population for analysis

Which data cleaning step addresses missing values?

Ignoring them

Imputation or removal

Normalization only

What does correlation not imply in data analysis?

Causation

Strength of association

Direction of relationship

Which measure is used to compare two data sets’ means accounting for sample size?

Chi-square

t-statistic

ANOVA F-value

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Data Analysis Challenge

Froggy Jumps

Sobre esta actividad

Creada por

Descarga la versión para jugar en papel

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Froggy Jumps

Data Analysis ChallengeVersión en línea

por Animashaun Muhydeen

What is the primary goal of exploratory data analysis (EDA)?

Which measure best represents the center of a skewed data set?

What does standard deviation describe in a data set?

If two variables move together in the same direction, they are:

What is a p-value used for in hypothesis testing?

Which visualization is best for showing distribution of a continuous variable?

What is sampling in data analysis?

Which data cleaning step addresses missing values?

What does correlation not imply in data analysis?

Which measure is used to compare two data sets’ means accounting for sample size?

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