Final answer:
The student's question pertains to the creation of scatter plots, determining linear, quadratic, or inverse relationships between variables, and calculating probabilities for a continuous random variable's lifespan.
Step-by-step explanation:
The question provided appears to be about constructing and interpreting different types of graphs and understanding the relationships between variables in the context of music albums and statistics. To create a scatter plot using the year number as the x-coordinate and catalog album sales as the y-coordinate, one needs to gather data points that represent catalog album sales for each year. With the x-axis ranging from 0 to 58 and the y-axis from 100 to 220, each year would be plotted according to the number of catalog album sales.
The graph showing the percent change at an annual rate suggests analysis regarding economic data, likely signifying changes in album sales or other related factors over time. For the creation of an equation to calculate a unit based on songs downloaded and their use in movies, the relationship between these subunits can be linear, quadratic, or inverse, depending on the dataset provided. Once the equation is determined, sample data can be graphed to visualize the relationship.
To calculate the probability that a CD player will last between 2.8 and 6 years (given 0< x < 58), one needs to sketch the probability distribution, mark the scale accordingly, and shade the region that corresponds to the required probability. This is essentially a problem of probability distribution associated with continuous random variables.