Question

50% of the babies are born female.Olive wants to find the probability that 20 or more of the 50 babies born today were female. We need to design a simulation. Which random device can be used to best represent this situation?
a.double sided coin heads females, tails males
b.use a random generator use number 1-100, assign 1-20 as female and 21-100 as male
c.use a pair of dice. doubles for female and the rest for male
d.use a spinner with 50 parts and assign 20 parts as female and 30 parts for male

Answer 1

Answer:

use a double sided coin because its a 50/50 chance

Step-by-step explanation:

Answer 2

The best random device that can be used to represent this situation is; a.double sided coin heads females, tails males

What is the probability of selection?

We are told that;

Percentage of babies born female = 50%

Since percentage of babies born female is 50%, then it means that percentage of babies born male = 50%

Now,this means there is an equal chance that we have a male or female baby.

Thus, the best simulation will be one that represents an equal chance and in this case it is a double sided coin with heads females, tails males.

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