Question

for this unit, we will only focus on the model. example 1: a team of wildlife conservationists and marine biologists has been studying the population of pelicans in a region since 2010. the table shows the estimated number of pelicans in different years. years since 2010, number of pelicans (thousands): 0, 5.2; 1, 4.5; 2, 4.1; 3, 3.9; 5, 4.1; 6, 4.4; 8, 5.7; 10, 7.5. 1. what do you notice about the data? 2. describe the data distribution. 3. using desmos, let’s create a scatter plot of the data. pelican population, number of pelicans (thousands), years since 2010

Explanation:

1. For the first question: The number of pelicans initially decreases from 5.2 thousand in year 0 (2010) to 3.9 thousand in year 3, then starts to increase, reaching 7.5 thousand in year 10. There is a non - linear trend.
2. For the second question: The data distribution is non - uniform. It has a decreasing part in the early years and an increasing part later, suggesting a possible U - shaped or a more complex non - linear distribution.
3. For the third question: To create a scatter plot in Desmos, you would input the pairs of values where the x - values are the "Years Since 2010" and the y - values are the "Number of Pelicans (thousands)". Each pair would be a point on the graph.

Answer:

1. The number of pelicans first decreases and then increases over the years.
2. The data has a non - uniform, potentially non - linear distribution.
3. Input the (x,y) pairs (Years Since 2010, Number of Pelicans in thousands) into Desmos to create the scatter plot.