WILL CHILDREN OF A FAMILY SHARE THE SAME BIRTH DAY?

ADVT: SMARTWATCHES IN AMAZON

Suppose, a family has two or three children. Will they have the same birthday? It happened in Great Briton. In 2010, Jennifer and Briss Allah were expecting their third child. They were also preparing to celebrate the birthday of their two children, Adam and Najla on 7th October.

While Mum Jennifer was blowing up balloons for the upcoming celebrations, she felt something in her stomach and realized that her contractions had begun. She could not believe it. The unthinkable was about to happen. The family's third child, Sami, was also born on 7th October. The "daily mail" proclaimed,' Happy birthday to you ... and you... and you too. Couple's three children born on the same date'.

An event such as this occurring is mindboggling. But statistically, it can happen. Let us see the little math behind it.

The probability of first

child born on any day = 1

The probability of the second

child born on same day =1*1/365

The probability of third

child born on the same day too =1*1/365*1/365=1/133225

That is, the chance for a family to have three children born with the same birthday is 1 in 133225.

Remember, A chance for getting a head in a coin toss is 1 in 2 or 1/2. If you toss a coin 10 times, you will get 5 heads.

That is 10*1/2 =5

similarly,

In the UK, there are around a million families with three children under eighteen, hence,

1 million *1/133225=7.5

We can expect around seven of these families to have all three children share the same birthday. On an individual level, we often think about how unlikely it would happen to us. "But with a large enough sample, any outrageous thing is likely to happen".

This example once again proves that, in the case of large numbers, any miracle can happen.

Comments

Your heart -you do not know

Size and Location: The human heart is roughly the size of a clenched fist and is located slightly to the left of the center of the chest. Despite its relatively small size, the heart plays a crucial role in pumping blood throughout the entire body. Heartbeat Variability: The heart does not beat at a constant rate. The interval between heartbeats can vary, and this variability is considered a sign of a healthy heart. Factors such as breathing, emotions, and physical activity influence the heartbeat. Electrical Conduction: The heart's contractions are controlled by electrical impulses. The sinoatrial (SA) node, often called the "natural pacemaker," generates electrical signals that regulate the heartbeat and coordinate the pumping of blood. Blood Pumping Capacity: On average, the human heart pumps about 2,000 gallons (or 7,570 liters) of blood each day. Over a lifetime, this amounts to pumping enough blood to fill several Olympic-sized swimming pools. Heart Chambers and V...

THE WORK HORSE "="

One cannot think of a mathematical step without 'is equal to ' . It balances right hand side and left hand side. It aids simplification and manipulation of a mathematical expression. example: 2(A+B) = C 2A+2B = C 2A = C-2B A = C-2B/ 2 In an electronic calculator, the pressing of ' = " sign executes an asthmatic expression or simply calculates. In computer languages, it plays very important role. A = B When a computer looks at this expression, the value stored in the location named B is just transferred to the storage named A . After execution both A and B will have the same value an...

How does your smart phone detect motion, steps, rotation, and location?

How it works-1 An accelerometer in a smartphone is a microelectromechanical system (MEMS) device that measures acceleration and tilt. It works by detecting changes in motion by measuring the vibration or acceleration of the device. The accelerometer consists of a small mass suspended on a spring inside a sealed chamber. When the device is subjected to acceleration, the mass moves relative to the device, causing a change in capacitance that can be measured and processed by the smartphone's hardware. The accelerometer measures acceleration in three dimensions (x, y, and z) and provides data that the smartphone's software can use to determine the device's orientation, detect motion, and track changes in velocity and acceleration. The accelerometer is used for a variety of purposes in a smartphone, including screen rotation, motion tracking for games and fitness apps, and detecting the position of the device for navigation and location services. Additionally, it can be used t...

sciencecapsules

Search This Blog