Time to review: The following table presents the time taken to review articles that were submitted for publication to a pa journal during a recent year. A few articles took longer than 6 months to review; these are onitted from the table. Conside data to be a population. Time (Months) Number of Articles 0-0.9 48 1.0-1.9 19 2.0-2.9 18 20. 20 17

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Time to review: The following table presents the time taken to review articles that were subrmitted for publication to a particular
journal during a recent year. A few articles took longer than 6 months to review; these are omitted from the table. Consider the
data to be a population.
Time (Months)
Number of Articles
0-0.9
48
1.0-1.9
19
2.0-2.9
18
3.0-3.9
17
4.0-4.9
15
5.0-5.9
11
Send date te Excel
(a) Approximate the variance of the times. Round the answer to at least two decimal places.
The variance is 2.92
(b) Approximate the standard deviation of the times. Round the answer to at least two
decimal places.
Transcribed Image Text:Time to review: The following table presents the time taken to review articles that were subrmitted for publication to a particular journal during a recent year. A few articles took longer than 6 months to review; these are omitted from the table. Consider the data to be a population. Time (Months) Number of Articles 0-0.9 48 1.0-1.9 19 2.0-2.9 18 3.0-3.9 17 4.0-4.9 15 5.0-5.9 11 Send date te Excel (a) Approximate the variance of the times. Round the answer to at least two decimal places. The variance is 2.92 (b) Approximate the standard deviation of the times. Round the answer to at least two decimal places.
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