Question

this passage describes bite force in italian wall lizards.
italian wall lizards may eat plants or small animals: plant cells have tough walls that make plants hard to chew. so, lizards that are adapted to eating plants often have strong bites.
the force of a lizards bite, or bite force, can be measured with a small sensor. when the lizard bites the sensor, its bite force is recorded in newtons (n).
the table below describes a possible population of italian wall lizards at the start of a period of time and at the end of that period. the table shows bite force measurements for a representative sample of the population at the start and for another representative sample at the end.
complete the table.
data from representative samples of a population of italian wall lizards

point in time	list of bite force measurements (n)	average bite force (n)
end	0.5, 0.5, 0.6, 0.6, 0.6, 0.7, 0.7

Explanation:

Step1: Calculate sum for Start sample

$0.7 + 0.8 + 0.9 + 1.0 + 1.0 + 1.0 + 1.1 + 1.1 + 1.2 + 1.2 = 10.0$

Step2: Find average for Start sample

$\text{Average} = \frac{\text{Total Sum}}{\text{Number of Measurements}} = \frac{10.0}{10} = 1.0$

Step3: Calculate sum for End sample

$0.5 + 0.5 + 0.6 + 0.6 + 0.6 + 0.7 + 0.7 = 4.2$

Step4: Find average for End sample

$\text{Average} = \frac{\text{Total Sum}}{\text{Number of Measurements}} = \frac{4.2}{7} = 0.6$

Answer:

Point in time	List of bite force measurements (N)	Average bite force (N)
End	0.5, 0.5, 0.6, 0.6, 0.6, 0.7, 0.7	0.6