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Consider the following frequency table representing the scores on a test.
Scores on a Test
Class Frequency
20–29 9
30–39 4
40–49 3
50–59 2
60–69 10
Determine the number of scores between 19.5 and 49.5.

Respuesta :

anthougo

The number of scores between 19.5 and 49.5 using the cumulative frequency is 16.

What is the cumulative frequency?

The cumulative frequency is the running total of frequencies over some class intervals.

The frequency refers to the number of elements in the set or class.

Therefore, the cumulative frequency is the sum of all previous frequencies up to the required point.

Data and Calculations:

Scores on a Test

Class    Frequency   Cumulative Frequency

20–29         9                        9 (0 + 9)

30–39         4                       13 (9 + 4)

40–49         3                      16 (13 + 3)

50–59         2                      18 (16 + 2)

60–69        10                    28 (18 + 10)

Thus, the number of scores between 19.5 and 49.5 using the cumulative frequency is 16.

Learn more about cumulative frequencies at https://brainly.com/question/21807065

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