Find mean and variance for the dataset


Discuss the below:

Q1) Calculate the standard deviation, mean, and variance for the dataset below (round to the nearest 2 decimal places where applicable).

Men's 400 Meter Race



Athlete

Country

Time

LaShawn Merritt 

USA 

43.75

Jeremy Wariner

USA

44.74

David Neville

USA

44.80

Chris Brown

BAH

44.84

Leslie Djhone

FRA

45.11

Martyn Rooney

GBR

45.12

Renny Quow

TRI

45.22

Johan Wissman

SWE

45.39

 Q2) Do the standard deviation, mean, and variance calculations in a Microsoft Excel document

Men's 400 Meter Race



Athlete

Country

Time

LaShawn Merritt 

USA 

43.75

Jeremy Wariner

USA

44.74

David Neville

USA

44.80

Chris Brown

BAH

44.84

Leslie Djhone

FRA

45.11

Martyn Rooney

GBR

45.12

Renny Quow

TRI

45.22

Johan Wissman

SWE

45.39

Q3) Describe a situation in which you could use z-scores to make better business process decisions (i.e. in the medical field, appointments, etc.)

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Basic Statistics: Find mean and variance for the dataset
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