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In a variant of this puzzle, the prisoners know that there are 2 black hats and 2 white hats, and there is a wall in between A and B, yet the prisoners B, C & D can see who's in front of them i.e. D sees B, C and the wall, B sees the wall, and C sees B & the wall. (A again cannot be seen and is only there to wear one of the black hats.)
Using the same argument as before it becomes clear that the number on the gate is 13, and the ages 9, 2 and 2. [ 5 ] A criticism of this problem is that a household may have two children of the same age in terms of natural numbers, but different birthdays, such as children in a mixed-parent household.
The answer to the first question is 2 / 3 , as is shown correctly by the "simple" solutions. But the answer to the second question is now different: the conditional probability the car is behind door 1 or door 2 given the host has opened door 3 (the door on the right) is 1 / 2 .
The online video game platform and game creation system Roblox has numerous games (officially referred to as "experiences") [1] [2] created by users of its creation tool, Roblox Studio. Due to Roblox ' s popularity, various games created on the site have grown in popularity, with some games having millions of monthly active players and 5,000 ...
Integrated mathematics is the term used in the United States to describe the style of mathematics education which integrates many topics or strands of mathematics throughout each year of secondary school. Each math course in secondary school covers topics in algebra, geometry, trigonometry and functions. Nearly all countries throughout the ...
Roblox Corporation has been ranked on Pocket Gamer.biz ' s top lists of mobile game developers, placing sixth in 2018, [30] eighth in 2019, [31] and sixth in 2020. [32] Fortune featured it as one of the best small and medium-sized workplaces in the San Francisco Bay Area, placing it sixteenth in 2019 and fortieth in 2021.
Kong posted the puzzle following a debate with his wife, and he incorrectly thought it to be part of a mathematics question for a primary school examination, aimed at 10- to 11-year-old students, [5] although it was actually part of the 2015 Singapore and Asian Schools Math Olympiad meant for 14-year-old students, a fact later acknowledged by ...
A line integral (sometimes called a path integral) is an integral where the function to be integrated is evaluated along a curve. [42] Various different line integrals are in use. In the case of a closed curve it is also called a contour integral. The function to be integrated may be a scalar field or a vector field.