Solved

The Redwood Groves in Northern California Are One of America's

question 15

Multiple Choice

The redwood groves in Northern California are one of America's greatest natural resources. Redwoods can live more than 2,000 years and grow taller than 350 feet. When tourism became popular in the late 1800s, large tunnels were cut through the center of several of these giant trees to allow wagons to pass through (and to attract tourists to the location) . Even today, visitors wait in line to be photographed driving their cars through a tunnel. When the groves were converted into national parks, the tunneling was discontinued, but several tunneled trees are still alive.
-When the redwood tunnels were first constructed, not much consideration was given to the long-term effects of a tunnel on a tree's health. Nevertheless, many trees have survived more than 100 years after a tunnel was cut through their trunks. This is possible because

Definitions:

Weighted Average Model

A mathematical method that calculates the mean of a set of numbers, where some numbers contribute more significantly to the final average due to their respective weights.

Exponential Smoothing Model

A time series forecasting method that applies weighting factors which decrease exponentially to past observations.

Simple Exponential Smoothing

A time series forecasting method for univariate data that uses a weighted average of past observations, with the weights declining exponentially as the observations get older.

Mean Absolute Deviation

A measure of variability that represents the average absolute difference between each data point and the mean of the dataset.