Lost Time Injury Frequency Rate (LTIFR):
A measure commonly used to report workplace safety performance which is calculated by dividing the number of LTIs by the total hours worked, multiplied by one million
A good TRIF is 0.
Everything you do, should strive for that result.
NUmber of recordable injuries/illnesses in the year x 200,000/total number of hours worked by all employees in the year
The 'Trif' calculation is intended to equate to the percentage of workers we hurt per year (within a specific population, such as company or industry). Since the average person works about 2000 hours per year, and in order to get a percentage, we must multiply by 100, we come up with the equation: 200,000 X Number of 'recordable' incidents divided by total man hours actually worked.
Total Recordable Incident Rate
The ration of a frequency to its total frequency is called relative frequency.
(No. of Reportable Accidents * 100,000) / Total No. of Hours Worked for all Employees = AFR
The mean is simply the average. Mean = Sum of data divided by the total number of observations.
find the frequency before finding the percent total -_- :)
Cumulative Frequency is The total of a frequency and all frequencies so far in a frequency distribution. It is the 'running total' of frequencies in the frequency distribution table.
The absolute frequency is the total amount of occurances of one variable. The relative frequency is the absolute frequency divided by the total amount of occurances of ALL variables.
You carry out an experiment repeatedly. Then the number of times that the selected even occurs divided by the total number of trials is the relative probability for that event.
Cumulative frequency is the running total of class frequencies.
The frequency in a frequency table is the number of occurrences within each class width. The total frequency is the sum of all frequency's within all the classes.