Question: A communication channel is being monitored by recording the number of errors in a string of 1000 bits. Data for 20 of these strings follow:

A communication channel is being monitored by recording the number of errors in a string of 1000 bits. Data for 20 of these strings follow: Read data across. 3 10 3 2 41 3 1 1 2 3 3 2 02 0.

(a) Construct a stem-and-leaf plot of the data.

(b) Find the sample average and standard deviation.

(c) Construct a time series plot of the data. Is there evidence that there was an increase or decrease in the number of errors in a string? Explain.

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