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Measures Of Central Tendency Problems And Solutions. A high school teacher at a small private school assigns trigonometry practice problems to be worked via the net. I 6 9 11 12 and 7. These measures indicate where most values in a distribution fall and are also referred to as the central location of a distribution. If the goal is to find the highest frequency or amount of a certain variable the mode will probably be the best measure.
Find the median of these marks. Heights of 5 persons are 140 cm 150 cm 152 cm 158 cm and 161 cm. To calculate the mean or average of a group of numbers first add all the numbers then divide by the number of values. Students must use a password to access the problems and the time of log-in and log-off are automatically recorded for the teacher. If there arent any extreme values or outliers the mean may be the best especially with large sample sizes. The measures of central tendency provides summary of data set rather than the individual data.
Three familiar measures of central tendency are the mean the median and the mode.
The mean is influenced by all data in a. What are the Measures of Central Tendency. 24 A Question 1. The mean is influenced by all data in a. 3 5 7 3 8 0 1 4 and 6. Because we have grouped data the easiest measure of central tendency to approximate by simply looking at the graph and table is mode.