The lifespans of meerkats in a particular zoo are normally distributed. The average meerkat lives 13.1
years; the standard deviation is 1.5 years.
Use the empirical rule (68 - 95 - 99.7%) to estimate the probability of a meerkat living between 16.1
and 17.6 years.

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

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step-by-step explanation: