How does a time series plot differ from a histogram?

How does a time series plot differ from a histogram?
 a. A histogram displays one measurement variable, but a time series plot displays data with two measurement variables (time is one of them).
  b. A histogram displays data collected at one point in time, while a time series plot displays data collected over a series of times.
  c. If a histogram is flat, that indicates more variability than if it were bell-shaped. If a time series plot is flat, that indicates less variability than if it were bell-shaped.
  d. All of the above.

Q. 2

Which of the following does not describe a time series?
 a. A time series is a record of a variable across time.
  b. A time series is usually measured at equally spaced time intervals.
  c. A time series is a data set on numerous individuals measured in units of time (for example, time until completion of the obstacle course; or time until graduation).
  d. All of the above describe a time series.

Q. 3

Explain why it is not wise to forecast a trend very far into the future.

Q. 4

Name two questions you should ask to avoid being misled when reading time series data.

Q. 5

Even if you were to account for the trend, seasonal components, and smooth irregular cycles, you would still not be able to perfectly explain or predict a time series plot. Why not?

Q. 6

How can a time series plot mislead the reader into thinking that a trend in the data is long term, when in fact it is only short term?

Q. 7

Why is it important for a manufacturer to know about any seasonal component to the time series of the sales of their product?

Q. 8

Most time series contain the same four components Name two of them.