'A', 'B' and 'C' invested certain sum in a business in the ratio 3:4:5, respectively. After 1 year, all of them withdrew their initial investment and then 'A' added Rs. (x + 500), 'B' added Rs. (1.4x + 300) and 'C' added Rs. (2x - 500) in the business. The respective ratio of the profit received by them after 2 years 5:6:6. The total investment made by 'B' is:
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Answer:
The expected value is often referred to as the “long-term” average or mean. This means that over the long term of doing an experiment over and over, you would expect this average.
You toss a coin and record the result. What is the probability that the result is heads? If you flip a coin two times, does probability tell you that these flips will result in one heads and one tail? You might toss a fair coin ten times and record nine heads. As you learned in (Figure), probability does not describe the short-term results of an experiment. It gives information about what can be expected in the long term. To demonstrate this, Karl Pearson once tossed a fair coin 24,000 times! He recorded the results of each toss, obtaining heads 12,012 times. In his experiment, Pearson illustrated the Law of Large Numbers.