how can you use percentile point data and cumlative frequencies together to see if one form...

how can you use percentile point data and cumlative frequencies together to see if one form of a test is harder than other forms of the test?

Expert Solution

Answer:

The median is the 50th percentile: the point in the information where half of the information fall below that point, and half fall above it. To calculate the kth percentile (where k is any number somewhere in the range of zero and one hundred), do the accompanying steps: Order every one of the qualities in the informational collection from littlest to biggest.

Use the Frequency column to calculate cumulative frequency.

In the first place, include the number from the Frequency segment to its predecessor.
Anyway in Stem 1, there are two observations.
In Stem 2, there are three observations.

Proceed with these calculations until you have included the majority of the numbers in the Frequency segment.

Cumulative frequency is characterized as a running aggregate of frequencies. The frequency of a component in a set alludes to what number of that component there are in the set. Total frequency can likewise characterized as the whole of every single past frequency up to the present point.

orchestra answered 2 years ago

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