Children Probablity
436.9K Views
John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?
Hint: It is not 1/2 as you would first think.
1/4
Probabilities of individual events are independent of each other and the outcome of the first (or subsequent) events. Hence, the probability of the second child to be a girl will be 1/2 x 1/2 = 1/4
can you explain this to me in more detail
Your Answer
More puzzles to try-
Foot size and spelling test riddle
scientific studies have shown that there is a direct, positive correlation between foot size and performance in spelling tests. how ...Read More »Find The Word “Final”
Test the sharpness of your eyes by finding the word “final” in the word grid within 7 seconds.Read More »Find the mistake in the chopping board picture
Can you Find the mistake in the chopping board picture?Read More »Forward I am heavy, but backward I am not riddle
Forward I am heavy, but backward I am not. What am I?Read More »Man in car riddle
A man is in his car. He sees three doors; a golden one, a diamond one and a silver one. ...Read More »Traveling puzzle
John recently traveled from his home town to a distant Conference, on a pedal tricycle of all things! his wonderful, ...Read More »Crack The Graph
Why does the second shape have an open block when the first shape does not?Read More »Complete The Cube
Below is a cube which has been opened up. Fill in the missing boxes.Read More »Can you make expressions to make 100 using 9’s and operators?
You have four 9’s and you may use any of the (+, -, /, *,.) as many times as you like. ...Read More »Nabila is smart! Nafiza smarter!!
Nafiza is a very funny girl! She plays with numbers. All her numbers are rational. And she writes the numbers ...Read More »Women and Fish lateral thinking puzzle
A woman had a pet goldfish which she loved very dearly. One day she noticed that it was swimming feebly ...Read More »Chemical Mixture Weight
John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the ...Read More »3 Dice rolls to get coins Puzzle
You play a game where you are allowed 3 dice rolls. If at any step you decided to end the ...Read More »Measurement Tricks
You have two buckets of 11 litres and 6 litres. How can you measure exactly 8 litres?Read More »8 Coins puzzle
There are 8 identical coins.One of these coins is counterfeit and is known to be lighter than the genuine coins. ...Read More »Mark the next
What is next in the series ? 23, 38, 45, 64, 67, ….Read More »How could she recognize them?
A girl died and her soul was received in heaven. She was astonished to find uncountable naked people who looked ...Read More »The fear of Dot town
In a town named Dot Town every resident has a colored dot upon his or her forehead. This dot is ...Read More »Magic Maths
Correct the following equality 101 – 102 = 1 by moving just one digit.Read More »Car accident riddle
Two cars were involved in an accident in the centre of city. The man who was driving a little green ...Read More »
Accenture Interview PuzzlesAdobe Interview PuzzlesAge RiddleAkbar Birbal PuzzlesAlgorithm PuzzlesAlphabet riddleAmazon Interview PuzzlesAnalytical MathematicsAptitude PuzzleBank PuzzlesBetting PuzzlesBrain TeasersCalendar PuzzlesCards PuzzlesChess Board PuzzleChess PuzzlesChristmas Puzzlecipher PuzzleCivil Services PuzzleClock time puzzleCognizant Interview PuzzlesCoins PuzzleComputational PuzzleconundrumCoronavirus PuzzleCoupondunia Interview PuzzleCritical Thinking Puzzledata analyticsData Structure Interview QuestionsDecode PuzzleDetective PuzzlesDice PuzzleDictionary Riddlesdifficult riddleEasy Math puzzlesEasy puzzlesEinstein puzzleEnglish RiddleFamily Tree Puzzlefamous puzzleFill in the blanks riddlesFinding Killer RiddlesFlipkart interview puzzlesFunny RiddlesGeneral KnowledgeGeographical PuzzleGoogle Code Jam 2014Google Interview PuzzlesGRE PuzzleHard Puzzle