in the last hour, ellie observed 32 monarchs, 56 gulf fritillaries and 8 giant swallowtails visit her…

in the last hour, ellie observed 32 monarchs, 56 gulf fritillaries and 8 giant swallowtails visit her butterfly garden. if 480 butterflies visit her garden, how many can we expect will be giant swallowtails?

in the last hour, ellie observed 32 monarchs, 56 gulf fritillaries and 8 giant swallowtails visit her butterfly garden. if 480 butterflies visit her garden, how many can we expect will be giant swallowtails?

Answer

Explanation:

Step1: Calculate total observed butterflies

$32 + 56+8=96$

Step2: Find proportion of giant swallowtails

The proportion of giant - swallowtails in the observed sample is $\frac{8}{96}=\frac{1}{12}$.

Step3: Calculate expected number of giant swallowtails

If 480 butterflies visit the garden, the expected number of giant swallowtails is $480\times\frac{1}{12} = 40$.

Answer:

40