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 Using the correct units, what is the value of the sample variance

0.7890476193 cm²

Step-by-step explanation:

We were given the following data set

5.6, 4.9, 6.0, 5.1, 5.5, 5.1, 7.5

Formula for Sample Variance

= (x - Mean)²/ n - 1

n = 7

Step 1

Find the Mean

Mean = Sum of terms/ Number of terms

= (5.6 + 4.9 + 6.0 + 5.1 + 5.5 + 5.1 + 7.5 )cm²/5

= 39.7/7

= 5.671428571 cm²

Step 2

We find the Sample Variance

Formula for Sample Variance

= (x - Mean)²/ n - 1

= (5.6 - 5.671428571)² + (4.9 - 5.671428571)² +( 6.0 - 5.671428571)² + (5.1 - 5.671428571)² + (5.5 - 5.671428571)² + (5.1 - 5.671428571)² + (7.5 -5.671428571)² )cm²/5 - 1

=( 0.005102040817 +0.5951020408 + 0.1079591837 + 0.3265306122+ 0.02938775509 + 0.3265306122 + 3.343673471)cm²/4

= 4.734285716cm²/4

= 0.7890476193 cm²

Therefore, the Sample Variance is 0.7890476193cm²

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step-by-step explanation:

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