Use the data given below to answer the following question(s) .
Following is an extract from the Employee Payroll Database of HFR Informatics Inc. Employee Maria Peter George Smith Johnson Thompson Martinez Lewis Lee Taylor Carter Edwards Bailey Cooper Bill Cox Perry Flores Woods Cole Ethnic Group Asian American White American Hispanic American Black American Alaska Native Asian American Alaska Native White American Black American Asian American Asian American Hispanic American White American White American Alaska Native Asian American Hispanic American Alaska Native White American Asian American Gender Female Male Male Female Male Male Male Female Male Female Male Male Male Male Male Male Female Female Male Female Rank / Grade 32112232212222312231 Pay Scale A B C D E B A B A B C E B A E A C B E A
-What is the cumulative relative frequency of Ranks 1 and 2?
Morphemes
The smallest meaningful units in a language, such as root words, prefixes, and suffixes.
Mental Abilities
Cognitive functions and processes that include reasoning, memory, attention, and language comprehension, enabling individuals to learn and solve problems.
Babbling
An early stage in language development where infants produce sounds or syllables repetitively without specific meaning, often seen as a precursor to speech.
Schemes
Cognitive structures or frameworks for organizing and interpreting information, used by children to understand the world as they grow and learn.