P&R Unit

Front

What is the MEAN of a set of numbers?

Back

The mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the total count of numbers.

Front

How do you calculate the MEAN of the data: 4, 4, 3, 2, 2?

Back

Add the numbers: 4 + 4 + 3 + 2 + 2 = 15. Then divide by the count of numbers (5): 15 / 5 = 3.

Front

What is the MEDIAN of a set of numbers?

Back

The median is the middle value in a set of numbers when they are arranged in order.

Front

How do you find the MEDIAN of the data: 5, 4, 6, 2, 2?

Back

Arrange the numbers in order: 2, 2, 4, 5, 6. The median is the middle number, which is 4.

Front

What happens to a population if there are more births than deaths?

Back

The size of the population will increase.

Front

What is an ecologist?

Back

An ecologist is a scientist who studies the interactions of organisms with each other and their environment.

Front

What is competition in ecology?

Back

Competition occurs when two or more populations use the same resource, such as food.

Front

What is a population in ecological terms?

Back

A population is a group of individuals of the same species living in a specific area.

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms and their physical environment interacting as a system.

Front

What is biodiversity?

Back

Biodiversity refers to the variety of life in a particular habitat or ecosystem.