The Cumulative Frequency and Cumulative Relative Frequency for a Particular

question 5

Essay

The cumulative frequency and cumulative relative frequency for a particular class interval are the sum of frequencies and relative frequencies, respectively, for that interval and all intervals lying below it. Compute the cumulative frequencies and cumulative relative frequencies for the following data: $$\begin{array} { l l l l l l l l l l } 75 & 89 & 80 & 93 & 64 & 67 & 72 & 70 & 66 & 85 \\89 & 81 & 81 & 71 & 74 & 82 & 85 & 63 & 72 & 81 \\81 & 95 & 84 & 81 & 80 & 70 & 69 & 66 & 60 & 83 \\85 & 98 & 84 & 68 & 90 & 82 & 69 & 72 & 87 & 88\end{array}$$

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Definitions:

Uncontrolled Cell Division

The process by which cells divide without regulation, often leading to tumor growth and cancer.

Cytotoxic T Cell

A kind of white blood cell that eliminates cancerous cells, cells infected mainly by viruses, or cells harmed in various manners.

MHC Class I

(Major Histocompatibility Complex Class I) are molecules found on almost all nucleated cells that present peptide antigens to the immune system, particularly to CD8+ T cells.

Antigen-Presenting Cell

A cell that displays antigen complexed with major histocompatibility complexes on their surfaces for recognition by T-cells, crucial in initiating an immune response.