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11.4 Matrix Test 2A

  1. An amateur meteorologist predicts the weather based solely on today's weather. The picture below depicts the probability that the weather will either be sunny, cloudy, or rainy based on the weather today.

    probability diagram

    1. Construct and label the transition matrix that corresponds to this picture. Name the matrix A.

    2. If the weather is rainy today, what is the probability that it will be cloudy tomorrow?

    3. If it is sunny today, what is the probability that it will be cloudy the day after tomorrow (ie., 2 days from now)?

    4. Matrix A is the transition matrix for one day. Find the transition matrix for two days.

    5. Find the transition matrix for three days.

    6. Find, to three decimal places, the matrix to which A appears to converges after many days.

    7. Explain the meaning of your solution to problem 1f.

  2. Using the following data and the normal equation, find the "best fit" straight line, accurate to one decimal place, to the points.

    x and y data points

  3. Using the following data and the normal equation, find the "best fit" parabola, accurate to one decimal place, to the points.

    x and y data points

    1. Use the power method to find the dominant eigenpair of the matrix A from problem 1.

    2. Use the power method to find the dominant eigenpair of the matrix matrix

    3. Use the characteristic equation to find both of the eigenpairs of the matrix matrix

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