The number of Haleem packet sold each day at the five branches of Karachi Haleem during the last month had the following frequency distribution:   Class Frequency 0 – 199.99 23 200 – 399.99 45 400 – 599.99 19 600 – 799.99 32 800 – 999.99 15     Determine the probability of Haleem sold each day between 400 – 800.  Evaluate the mean and standard deviation of Haleem packet sold each day If director of operation planned to the arrange the staff for next month to cater Haleem packet sold each day, based on previous standard deviation value which is 300. Based on last month data, he should worry for more staffing or not?

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A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.