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goal. A sample of drive-thru times from the downtown branch was recently taken and is shown here. The frequency is the number of service times and the time interval is the service time in minutes. Time Interval Frequency 10 - 19 7 20 - 29 13 30 - 39 14 40 - 49 12 50 - 59 6.

goal. A sample of drive-thru times from the downtown branch was recently taken and is shown here. The frequency is the number of service times and the time interval is the service time in minutes. Time Interval Frequency 10 - 19 7 20 - 29 13 30 - 39 14 40 - 49 12 50 - 59 6.

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 92E
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Southern States Bank and Trust Southern States Bank and Trust monitors its drive-thru service times electronically to ensure that its speed of service is meeting the company's goal. A sample of drive-thru times from the downtown branch was recently taken and is shown here. The frequency is the number of service times and the time interval is the service time in minutes. Time Interval Frequency 10 19 7 20 29 13 30 - 39 14 40 - 49 12 50 59 9. Compute the standard deviation for these sample data. (Round to the nearest 2 decimal places, if needed.)
Transcribed Image Text:Southern States Bank and Trust Southern States Bank and Trust monitors its drive-thru service times electronically to ensure that its speed of service is meeting the company's goal. A sample of drive-thru times from the downtown branch was recently taken and is shown here. The frequency is the number of service times and the time interval is the service time in minutes. Time Interval Frequency 10 19 7 20 29 13 30 - 39 14 40 - 49 12 50 59 9. Compute the standard deviation for these sample data. (Round to the nearest 2 decimal places, if needed.)
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