Calculate the mean, median and mode from the following data relating to production of a steel mill for 60 days
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Bayes' Theorem
Exponential Smoothing Method
Standard normal distribution:
The monthly incomes of a group of 10,000 persons were found to be normally distributed with mean equal to 
15,000 and standard deviation equal to 1000. What is the lowest income among the richest 250 persons?
A restaurant is experiencing discontentment among its customers. It analyses that there are three factors responsible viz. food quality, service quality and interior décor. By conducting an analysis, it assesses the probabilities of discontentment with the three factors as 0.40, 0.35 and 0.25 respectively. By conducting a survey among the customers, it also evaluated the probabilities of a customer going away discontented on account of these factors as 0.6, 0.8 and 0.5, respectively. With this information, the restaurant wants to know that, if a customer is discontented, what are the probabilities that it is so due to food, service or interior décor?
From the following data compute quartile deviation and the coefficient of skewness:
Bayes' Theorem