Instruction 2 -Referring to Instruction 2

question 30

Short Answer

Instruction 2.8
Given below is the stem-and-leaf display representing the amount of detergent used in litres (with leaves in 10ths of litres) in a month by 25 drive-through car wash operations in Auckland.
$$\begin{array} { | l | l | } \hline \text { Stem } & \text { Leaves } \\\hline 9 & 147 \\\hline 10 & 02238 \\\hline 11 & 135566777 \\\hline 12 & 223489 \\\hline 13 & 02 \\\hline\end{array}$$
-Referring to Instruction 2.8 if a relative frequency or percentage distribution for the detergent data is constructed,using '9.0 but less than 9.9 litres' as the first class,_________ % of drive-through car wash operations use at least 10 litres but no more than 13 litres of detergent in a month.

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Definitions:

Somatic Nervous Systems

A part of the peripheral nervous system involved in voluntary control of body movements through the action of skeletal muscles.

Glial Cells

Non-neuronal cells in the central and peripheral nervous system that support, protect, and provide a supportive framework for neurons.

Axons

Long, threadlike parts of nerve cells which transmit electrical impulses away from the neuron's cell body.

Myelin

A fatty substance that surrounds and insulates the axons of nerve cells, speeding up the transmission of electrical signals in the nervous system.