Question

A frequency table of grades has five classes​ (A, B,​ C, D,​ F) with frequencies of ​3, 12 ​, 15​, 5​, and 3 respectively. Using​ percentages, what are the relative frequencies of the five​ classes?

Answer 1

The relative frequencies of the five​ classes are as follows:

Classes   Frequencies  Relative Frequencies

A                        3                          7.9%

B                       12                        31.6%

C                      15                        39.5%

D                       5                         13.2%

E                       3                           7.9%

What is a relative frequency?

A relative frequency is an indication of how often a specific event occurs within the total observations.

Relative frequencies are expressed as percentages, proportions, and fractions.

Data and Calculations:

Classes   Frequencies  Relative Frequencies

A                        3                          7.9% (3/38)

B                       12                        31.6% (12/38)

C                      15                        39.5% (15/38)

D                       5                         13.2% (5/38)

E                       3                           7.9% (3/38)

Total frequencies = 38 (3 + 12 + 15 + 5 + 3)

Learn more about relative frequencies at https://brainly.com/question/11228919

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