Question

QUESTION 54 Use the data given below to answer the following question(s) Following is an extract from the Employee Payroll Database of HFR Informatics Inc. Rank / Grade Pay Scale Employee Maria Peter Ethnic Group Asian American Female White American Gender Male Hispanic American Male Black American Alaska Native ThompsonAsian American Alaska Native White American Black American Asian American Asian American Smith Johnson Male Male Male Martinez Lewis Lee Taylor Carter Female Male Female Male Edwards Hispanic American Male Male Male Male Male Hispanic American Female Bailey Cooper Bill Cox Perry Flores Woods Cole White American White American Alaska Native Asian American Alaska Native White American Female Male Asian American Female What is the cumulative relative frequency of employees on a 'A to D' pay scale? 0.30 1.00 0.80 0.60

Answer 1

Frequency is the number of times a particular pay scale appears.

Relative frequency is the fraction of the times the particular scale appears to the total number of employees. Here the total number of employees is 20.

Here the cumulative relative frequency of Pay scale D is 0.8.

Calculations as below.

Pay Scale	Frequency ( Number of times it occurs)	Relative frequency	Cumulative Relative frequency
A	6	6/20 = 0.3	0.3
B	6	6/20 = 0.3	0.3+0.3 = 0.6
C	3	3/20 = 0.15	0.6+0.15 = 0.75
D	1	1/20 = 0.05	0.75+0.05 = 0.8