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Sherwin manages Delaroy County Zoo. The following table shows a probability model for the number of visitors on a weekday.

Number of visitors Probability
0-49 0.12
50-99 0.26
100-149 0.32
150-199 0.21
200+ 0.09

Is this a valid probability model?
Choose 1 answer:
A)
Yes

B)
No

Respuesta :

bilal28

A. The answer is yes, because the distribution is approximately a bell curve.

Answer:

Option A - Yes this probability model is valid.

Step-by-step explanation:

Given : Sherwin manages Delaroy County Zoo. The following table shows a probability model for the number of visitors on a weekday.

To find : Is this a valid probability model?

Solution :

Probability Model

Number of visitors Probability

         0-49                   0.12

         50-99                      0.26

        100-149                    0.32

        150-199                    0.21

           200+                    0.09

The property of probability is total sum of the probability of an event is always 1.

So, we find the sum of the probability,

i.e. P=0.12+0.26+0.32+0.21+0.09=1

It satisfy the property.

Therefore, Option A - Yes this probability model is valid.

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