One linear model is appropriate for the years 1910 through 1950and another linea

Question

One linear model is appropriate for the years 1910 through 1950and another linear model for the years 1950 through 1990.

One linear model is appropriate for the years 1910 through 1970and another linear model for the years 1970 through 1990.

A single linear model is appropriate for the entire dataset.

A linear model should not be used for any part of the data.

A linear model should be used for each pair of adjacent datapoints.

One linear model is appropriate for the years 1910 through 1950and another linear model for the years 1950 through 1990.

One linear model is appropriate for the years 1910 through 1970and another linear model for the years 1970 through 1990.

A single linear model is appropriate for the entire dataset.

A linear model should not be used for any part of the data.

A linear model should be used for each pair of adjacent datapoints.

Explanation / Answer

The Answer is B because the points collected form a straightline from 1910 to 1970 and from 1970 to 1990. For each of these twoperiods, a linear regression model is appropriate because weobserve a decreasing linear trend for the first period, and then anincreasing linear trend for the 2nd period Hope this helps

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