Biology
Grade-10
Easy
Question
What is the purpose of the chi-squared test?
- It's a metric for how far data deviates from the mean.
- It is used to determine whether two sets of data differ significantly.
- It's the average of a group of numbers.
- It's used to see if the discrepancy between what's observed and what's predicted is substantial.
Hint:
It's used to see if the discrepancy between what's observed and what's predicted is substantial
The correct answer is: It's used to see if the discrepancy between what's observed and what's predicted is substantial.
The purpose of this test is to determine if a difference between observed data and expected data is due to chance, or if it is due to a relationship between the variables being studied.
Therefore, a chi-square test is an excellent choice to help us better understand and interpret the relationship between our two categorical variables.
Related Questions to study
Biology
What is a null hypothesis??
What is a null hypothesis??
BiologyGrade-10
Biology
What is the best technique to ensure that quadrats are placed at random?
What is the best technique to ensure that quadrats are placed at random?
BiologyGrade-10
Biology
Which method can be used to measure population size and density in static creatures like plants, as well as very small and slow-moving species?
Which method can be used to measure population size and density in static creatures like plants, as well as very small and slow-moving species?
BiologyGrade-10
Biology
Which are the factors that are causing the decline of biodiversity and ecosystems?
Which are the factors that are causing the decline of biodiversity and ecosystems?
BiologyGrade-10
Biology
What is a collection of individuals from several species living in the same habitat and interacting functionally called?
What is a collection of individuals from several species living in the same habitat and interacting functionally called?
BiologyGrade-10
Biology
Which of the following term refers to a collection of populations of two or more species occupying the same geographic region at the same time?
Which of the following term refers to a collection of populations of two or more species occupying the same geographic region at the same time?
BiologyGrade-10
Biology
Dams worsen the impact of ___.
Dams worsen the impact of ___.
BiologyGrade-10
Biology
Which of the following is the reason of urbanization?
Which of the following is the reason of urbanization?
BiologyGrade-10
Biology
Directly and indirectly urbanization greatly impacts ___.
Directly and indirectly urbanization greatly impacts ___.
BiologyGrade-10
Biology
What does urbanization causes in rural areas?
What does urbanization causes in rural areas?
BiologyGrade-10
Biology
In past years, urbanization had a great influence on the ____.
In past years, urbanization had a great influence on the ____.
BiologyGrade-10
Biology
An unavoidable global process, _____ is severely affecting the ecosystem.
An unavoidable global process, _____ is severely affecting the ecosystem.
BiologyGrade-10
Biology
Which of the following is a natural destructor of the ecosystem?
Which of the following is a natural destructor of the ecosystem?
BiologyGrade-10
Biology
Which of the following is not a natural form of destruction of the ecosystem?
Which of the following is not a natural form of destruction of the ecosystem?
BiologyGrade-10
Biology
Human activity is causing changes in which of the following?
Human activity is causing changes in which of the following?
BiologyGrade-10
