Question

this passage describes endurance distance in cane toads.
the cane toad is a poisonous toad species from central and south america. humans brought cane toads to other continents so that the toads would eat insect pests.
in a new environment, a cane toad may travel long distances to find food. toads that can travel longer distances have greater endurance. endurance can be measured as an endurance distance, or the total distance a toad travels before it is too tired to move anymore.
the table below describes a possible population of cane toads at the start of a period of time and at the end of that period. the table shows endurance distance 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 cane toads

point in time	list of endurance distance measurements (m)	average endurance distance (m)
end	67.4, 105.0, 137.3, 144.5, 153.3, 175.4, 186.9, 192.3, 205.9

Explanation:

Step1: Calculate Start Average

Sum the start measurements: \(62.5 + 64.1 + 65.9 + 77.5 + 87.8 + 88.4 + 92.2 + 120.0\)
\(= 62.5+64.1 = 126.6\); \(126.6+65.9 = 192.5\); \(192.5+77.5 = 270\); \(270+87.8 = 357.8\); \(357.8+88.4 = 446.2\); \(446.2+92.2 = 538.4\); \(538.4+120.0 = 658.4\)
Divide by count (8): \(\frac{658.4}{8} = 82.3\)

Step2: Calculate End Average

Sum the end measurements: \(67.4 + 105.0 + 137.3 + 144.5 + 153.3 + 175.4 + 186.9 + 192.3 + 205.9\)
\(67.4+105.0 = 172.4\); \(172.4+137.3 = 309.7\); \(309.7+144.5 = 454.2\); \(454.2+153.3 = 607.5\); \(607.5+175.4 = 782.9\); \(782.9+186.9 = 969.8\); \(969.8+192.3 = 1162.1\); \(1162.1+205.9 = 1368\)
Divide by count (9): \(\frac{1368}{9} = 152\)

Answer:

Start average: \(82.3\) m
End average: \(152\) m