A Botany Student Measured the Lengths of a Sample of Leaves

question 30

Multiple Choice

A botany student measured the lengths of a sample of leaves to the nearest centimeter. The data is shown in the frequency distribution below. Use the data to approximate the mean to the nearest Tenth of a centimeter.

$\begin{array} { | c | c | } \hline \text { Length } & \text { Frequency } \\\hline 0 - 5 & 4 \\\hline 6 - 11 & 7 \\\hline 12 - 17 & 13 \\\hline 18 - 23 & 18 \\\hline 24 - 29 & 8 \\\hline 30 - 35 & 5 \\\hline\end{array}$

• A) 18.2 cm
• B) 9.2 cm
• C) 18.7 cm
• D) 5.8 cm

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Definitions:

Learning Disabilities

Neurologically-based processing problems that can interfere with learning basic skills such as reading, writing, or math, and can also hinder higher-level skills such as organization, time planning, abstract reasoning, long or short term memory, and attention.

Vocational Counseling

Guidance provided to individuals to help them choose, prepare for, and progress in their careers based on their interests, skills, and values.

Thorndike

Refers to Edward Lee Thorndike, an American psychologist known for his work in education psychology and the development of theories on learning and behavior.

Cattell

Cattell refers to Raymond Cattell, a psychologist known for his work in personality theory and his development of several personality assessments, including the 16 Personality Factor Questionnaire.