Libog

Question 1

EDA in statistics stands for

Answer 1

Exploratory Data Analysis

Question 2

CDA in statistics stands for

Answer 2

Confirmatory Data Analysis

Question 3

A type of statistics which assume that the data follow a specific distribution (usually normal) and rely on parameters like mean and standard deviation.

Answer 3

Parametric Statistics

Question 4

A type of statistics that does not assume a specific distribution for the data, making them useful for data that is ordinal, nominal, or not normally distributed.

Answer 4

Non-parametric Statistics

Question 5

A type of statistics which focuses on analyzing and summarizing data for a single variable at a time, often using measures of central tendency and dispersion.

Answer 5

Univariate Statistics

Question 6

A type of statistics that examines the relationship between two variables to identify any association or correlation.

Answer 6

Bivariate Statistics

Question 7

A type of statistics which involves analyzing data that includes more than two variables to understand complex relationships and interactions among them.

Answer 7

Multivariate Statistics

Question 8

It is an approach to analyzing data sets to summarize their main characteristics often with visual methods. It’s used to detect patterns, anomalies, and check assumptions.

Answer 8

Exploratory Data Analysis

Question 9

It is used to confirm hypotheses about data. It often involves inferential statistics methods to test hypotheses.

Answer 9

Confirmatory Data Analysis

Question 10

A type of statistics which involves updating the probability of a hypothesis as more evidence or data becomes available, based on Bayes’ Theorem.

Answer 10

Bayesian Statistics

Question 11

It focuses on analyzing data points

collected or recorded at specific time intervals, typically to forecast future trends.

Answer 11

Time Series Analysis

Question 12

A type of statistics which analyze data that has a spatial or geographical aspect, identifying patterns, clusters, or variations across locations.

Answer 12

Spatial Statistics

Question 13

Which of the following tests is appropriate for comparing means of two independent samples?

Answer 13

Independent t-test

Question 14

When performing a hypothesis test for a population proportion, which distribution is generally used?

Answer 14

Normal distribution

Question 15

In an ANOVA test, the null hypothesis is

Answer 15

The population means are equal.

Question 16

What does a chi-square test measure?

Answer 16

The association between categorical variables.

Question 17

When should you use a paired t-test?

Answer 17

Comparing two related groups

Question 18

What is the critical value in hypothesis testing?

Answer 18

The threshold to reject the null hypothesis

Question 19

The Central Limit Theorem states that:

Answer 19

The distribution of sample means will be approximately normal, regardless of the population distribution, as sample size increases

Question 20

The t-test is suitable for:

Answer 20

Testing the difference between means

Question 21

Which of the following tests compares observed frequencies to expected frequencies?

Answer 21

Chi-square test

Question 22

Which of the following words is used to correspond with the most toxic material?

Answer 22

Danger

Question 23

Which of the following risk assessment tool is used for the determination of spatial distribution of contaminants at the site?

Answer 23

Exposure assessment

Question 24

___________ establishes the relationship between the contaminant/s of concern and the receptor.

Answer 24

Toxicity assessment

Question 25

What is the final stage of risk assessment?

Answer 25

Risk characterisation

Question 26

The ____________ process determines whether exposure to a chemical can increase the incidence of adverse health effect.

Answer 26

Hazard identification

Question 27

What organizational structure is based on the assumption that each unit should specialize in a specific functional area and perform all of the tasks that require its expertise?

Answer 27

Functional organization

Question 28

What type of organization structure in which each project is assigned to a single organizational unit and the various functions are performed by personnel within the unit?

Answer 28

Product organization

Question 29

What organizational structure provides a sound basis for balancing the use of human resources and skills?

Answer 29

Matrix organization

Question 30

In what type of organization where a project manager is held responsible for completion of the project and is often assigned a budget?

Answer 30

Matrix organization