Exploring the Normal Distribution

What shape is commonly observed in histograms and is symmetric with one peak?

• Scatter plot

• Exponential curve

• Normal curve

• Linear curve

Where is the Manomet Center for Conservation Sciences located?

• Texas

• California

• Massachusetts

• Florida

What does the normal curve assume about the population beyond the sample?

• It assumes no specific distribution

• It assumes a uniform distribution

• It assumes a skewed distribution

• It assumes a normal distribution

Tags

CCSS.HSS.ID.A.4

What happens to the normal curve when the mean is changed?

• It remains unchanged

• It becomes wider

• It shifts along the x-axis

• It becomes narrower

What was a significant finding from the bird data collected since 1970?

• Data was inconclusive

• Bird population increased by 50%

• No significant change in bird population

• Bird population decreased by 50%

What major factor contributed to the decline in bird populations?

• Climate stability

• Overpopulation

• Habitat degradation and loss

• Increased predation

How does climate change potentially affect bird migration?

• Birds do not migrate

• No effect on migration

• Birds migrate earlier

• Birds migrate later

What does the first arrival date of birds indicate?

• Total population size

• Health of the habitat

• Nothing specific

• Migration patterns

What is the benefit of considering population sizes in migration studies?

• It speeds up the research process

• It reduces the cost of studies

• It helps in accurate data interpretation

• It is not beneficial

What positive outcome has been observed due to conservation efforts?

• No changes observed

• All bird species are increasing

• Bird populations are stable

• Bird populations are declining