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Sample space: The collection of all possible outcomes of a random experiment is called a sample space. Event: Any possible outcome or combination of outcomes of a random experiment is called an event. Equally likely events: Two or more events of a random experiment are said to be equally likely events if each one of them have an equal chance of occurrence.
Probability of an event: The chance of occurrence of ncert solutions of class 10th maths chapter 15 student event expressed quantitatively is known as the probability of an event and denoted by P E. A number is chosen at random from the numbers -3, -2,-1, 0, 1, 2, 3. What will be the probability that square of this number is less than or equal to 1?
Two different dice are thrown. Find the probability that the numbers obtained i have a sum less than7 ii have a product less than 16 iii is a doublet of odd numbers.
Peter throws two different dice together and finds the product of the two numbers obtained. Rina throws a die and squares the number obtained. Who has the better chance to get the number 25? This theory has extensive use as one of the basic tools in statistics and wide range of applications in Science, engineering, biological science, medical, commerce, weather forecasting.
Videos related to Ex Explanation is in simple language, so that students can understand easily. What do you understand by Random Experiment?
Random Experiment: A random experiment is one in which the stident outcome cannot be chapfer. What is meant by Trial in Probability? Trial: Performing a random experiment is called a trial. What is meant by Outcomes? Outcomes: Ncert solutions of class 10th maths chapter 15 student result of a random experiment is ncerf an outcome. What is Sample space in terms of Probability? What are Events? Which events are called Equally likely events?
What is meant by Probability of an event? Historical facts! The concept of probability was developed in a very strange manner. Ina 51 by name Chevalier de Mere approached the well-known 17th century French philosopher and mathematician Blaise Pascal regarding certain dice problems. Pascal discussed them with another French mathematician Pierre de Fermat and studentt found solution to dice problems. This work was the beginning of probability theory.
Probability theory has ncert solutions of class 10th maths chapter 15 student actual origin in the 16th century when an Italian physician and mths J. Since its inception, the study of Statistics and probability has attracted the attention of great mathematicians James Bernoulli �A.
InPierre Simon Laplace or Pierre de Laplace �France proposed a mathematical system of inductive reasoning based on probability. Statistician Karl Pearson � had tossed the coin times and he got heads. In the eighteenth century French De Buffon tossed a coin times and got heads.
Important Questions on Class 10 Maths Chapter 15 Why is tossing a coin considered to be a fair way of deciding which team should get the ball at the beginning of a football game? When we toss a coin, the possible outcomes are only two, ncert solutions of class 10th maths chapter 15 student or tail, which are equally likely outcomes.
Therefore, the result of an individual toss is completely unpredictable. It is given that in a group of 3 students, the probability of 2 students not having the same birthday is 0.
What is the probability that the 2 students have the same birthday? A die is thrown. Find the probability of getting a prime number. One card is then picked up at random.
What is the probability that the card is the queen? A lot of 20 bulbs contain 4 defective ones. One bulb is drawn at random from the lot. What is the probability that this bulb is defective? A box ncertt 90 discs which are numbered from 1 to If one disc is drawn at random from the box, find the probability that it bears a two-digit number.
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