Based on the data set that is summarized the number of values less than or equal to 6 are 20.
The frequency (f) of a given value is known to be defined as the rate or the number of times the value is said to have taken place or seen in the data.
Note that the distribution of a variable is seen to be the pattern of frequencies, that connote that the set of all possible given values and the frequencies is linked to these values.
Note that according to the table, the numbers that are less than or equal to 6 are: 5 + 3 + 2 + 3 + 4 + 3 = 20
Therefore, Based on the data set that is summarized the number of values less than or equal to 6 are 20.
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