Using conditional probability, it is found that there is a 0.052 = 5.2% probability that a randomly chosen U. S. President is left-handed and a democrat.
<h3>What is Conditional Probability?</h3>
Conditional probability is the probability of one event happening, considering a previous event. The formula is:

In which
- P(B|A) is the probability of event B happening, given that A happened.
is the probability of both A and B happening.
- P(A) is the probability of A happening.
In this problem, the events are:
- Event A: President is left-handed.
- Event B: President is a democrat.
Researching the problem on the internet, it is found that:
- 40% of the presidents were left-handed, hence P(A) = 0.4.
- If a president is left-handed, there is a 13% chance that the president is a Democrat, hence P(B|A) = 0.13.
Then:




0.052 = 5.2% probability that a randomly chosen U. S. President is left-handed and a democrat.
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95.44% IQ scores are between 77 and 125
We're given,
Mean (a)=101
standard deviation (b)=12
To find : ![P[77 < x < 125]](https://tex.z-dn.net/?f=P%5B77%20%3C%20x%20%3C%20125%5D)
Using Empirical Rule:
∴
![P[\frac{77-101}{12} < \frac{x-a}{b} < \frac{125-101}{12}]\\](https://tex.z-dn.net/?f=P%5B%5Cfrac%7B77-101%7D%7B12%7D%20%3C%20%5Cfrac%7Bx-a%7D%7Bb%7D%20%3C%20%5Cfrac%7B125-101%7D%7B12%7D%5D%5C%5C)
![=P[-2 < z < 2]\\](https://tex.z-dn.net/?f=%3DP%5B-2%20%3C%20z%20%3C%202%5D%5C%5C)
![=P[Z < 2]-P[Z < -2]\\](https://tex.z-dn.net/?f=%3DP%5BZ%20%3C%202%5D-P%5BZ%20%3C%20-2%5D%5C%5C)

=95.44% (approx)
Learn more about Empirical rule of IQ calculation here:
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It'll go straight. You need to cut the throttle to idle, then make a hard right. The PWC will have no control at that point.
The function is that they help in looking for Missing and exploited Children and thus they fasten the process of looking for or the identification of missing children and also their reunification. -
<h2>What is the correct function of this group?</h2>
The National Center for Missing & Exploited Children (NCMEC) serves as a body that help to give assistance to parents, children, and others in getting back missing children and raising public awareness in other to stop or prevent child abduction, and others.
Note that The function is that they help in looking for Missing and Exploited Children and thus they fasten the process of looking for or the identification of missing children and also their reunification. -
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Is there a picture fo dis question