Answer :

The value 1 is at the 30th percentile in the given set.

To determine the percentile at which the value 1 falls within the given set, we need to calculate the cumulative frequency and the total number of values in the set.

Given set of values: 1, 1, 1, 1, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 89, 89, 89, 89, 89

Step 1: Sort the values in ascending order:

1, 1, 1, 1, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 89, 89, 89, 89, 89

Step 2: Determine the cumulative frequency of values less than or equal to 1:

Cumulative Frequency = Number of values less than or equal to 1 / Total number of values

In this case, there are 6 values less than or equal to 1 (all the 1s in the set), and the total number of values is 20.

Cumulative Frequency = 6 / 20 = 0.3

Step 3: Convert the cumulative frequency to a percentile:

Percentile = Cumulative Frequency x 100

Percentile = 0.3 x 100 = 30

Therefore, the value 1 is at the 30th percentile in the given set.

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