The lifespans of gorillas in a particular zoo are normally distributed. the average gorilla lives 20.8 years; the standard devia
1 answer:
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The answer is the option d, which is: d)
The explanation for this problem is shown below:
1. Smplify the denominator and rewrite the numerator in this form:
2. Multiply the denominator and the numerator by the conjugated and simplify the expression, as following:
3. As you can see, you obtain the expression shown in the option mentioned above.