The image above represents dependent events.

To compute for dependent events, four essential parameters are needed and these parameters are **Number of Times Event A can occur** **(****x _{A}), Number of Times Event B can occur (x_{B}**

**)**and

**Total Number of All Possible Outcomes**

**(**

**N).**

The formula for calculating independent events:

P(A and B) = P(A) x P(B|A)

Where;

P(A and B) = Dependent events

^{xA} = Number of Times Event A can occur

^{xB} = Number of Times Event B can occur

N = Total Number of All Possible Outcomes

P(A) = ^{xA} ⁄ _{N}

P(B|A) = ^{xB} ⁄ _{(N – 1)}

Let’s solve an example;

Find the dependent events when the number of times event A can occur is 8, number of times event B can occur is 11 and the total number of all possible outcomes is 18.

This implies that;

^{xA} = Number of Times Event A can occur = 8

^{xB} = Number of Times Event B can occur = 11

N = Total Number of All Possible Outcomes = 18

P(A and B) = P(A) x P(B|A)

P(A and B) = ^{xA} ⁄ _{N} x ^{xB} ⁄ _{(N – 1)}

P(A and B) = ^{8} ⁄ _{18} x ^{11} ⁄ _{17}

P(A and B) = ^{(8)(11)} ⁄ _{(18)(17)}

P(A and B) = ^{88} ⁄ _{306}

Dividing the numerator and denominator by **2**

P(A and B) = ^{44} ⁄ _{153}

P(A and B) = 0.287

Therefore, the **d****ependent events **is **0.287.**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the dependent events.

To get the answer and workings of the dependent events using the **Nickzom Calculator – The Calculator Encyclopedia. **First, you need to obtain the app.

You can get this app via any of these means:

**Web** – https://www.nickzom.org/calculator-plus

To get access to the **professional **version via web, you need to **register** and **subscribe **for** NGN 1,500 **per** annum** to have utter access to all functionalities.

You can also try the **demo **version via https://www.nickzom.org/calculator

**Android (Paid)** – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

**Android (Free)** – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

**Apple (Paid)** – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

Once, you have obtained the calculator encyclopedia app, proceed to the **Calculator Map, **then click on **Probability**** **under **Mathematics****.**

Now, Click on **Dependent Events **under **Probability**

The screenshot below displays the page or activity to enter your values, to get the answer for the dependent events according to the respective parameters which are the **Number of Times Event A can occur** **(****x _{A}), Number of Times Event B can occur (x_{B}**

**)**and

**Total Number of All Possible Outcomes**

**(**

**N).**

Now, enter the values appropriately and accordingly for the parameters as required by the **Number of Times Event A can occur(x _{A})** is

**8**,

**Number of Times Event B can occur (x**is

_{B})**11**and

**Total Number of All Possible Outcomes(N)**is

**18**.

Finally, Click on Calculate

As you can see from the screenshot above, **Nickzom Calculator**– The Calculator Encyclopedia solves for the dependent events and presents the formula, workings and steps too.