Question

Geckos are lizards with specialized toe pads that enable them to easily climb all sorts of surfaces. A research team examined the adhesive properties of 7 Tokay geckos. Below are their toe-pad areas (in square centimeters, cm2). 5.6 4.9 6.0 5.1 5.5 5.1 7.5 To be an outlier, an observation must fall outside the range

Answer 1

SOLUTION

From given data,

A research team examined the adhesive properties of 7 Tokay geckos.

5.6

4.9

6.0

5.1

5.5

5.1

7. 5

Let us consider that,

X

5.6   -0.771429 0.005102

4.9 -0.771429   0.595102

6.0 0.328571 0.107959

5.1   -0.571429   0.326531

5.5    -0.171429   0.029388

5.1   -0.571429   0.326531

7.5 1.828571 3.343673

=39.7    =4.734286

Mean == = 39.7/7

= 5.671

Sample variance =

= 4.734286/7-1

=4.734286/6

= 0.789

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