On a Recent English Exam,if 20% of Scores Fell Below

question 10

Multiple Choice

On a recent English exam,if 20% of scores fell below 60 points and the standard deviation is 7.5,find the mean score (assuming the Normal model is appropriate) .

• A)12
• B)1.50
• C)67.5
• D)-53.70
• E)66.30

Understand the role of technology and scientific advancements in industrial and urban growth.

Recognize the variety of responses to the challenges of urbanization, including political machines and corporate consolidation.

Comprehend the social dynamics and cultural changes, including leisure activities, entertainment trends, and the concept of cultural pluralism.

Understand the political factions and parties of the Gilded Age, their policies, and their impacts on society.

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Definitions:

Spreading Activation

A process by which activation of particular concepts in memory spreads to related concepts, making them easier to recall.

Attention

Attention is the selective concentration on information or stimuli, excluding other perceivable information.

Nile River

One of the world’s longest rivers, flowing through northeastern Africa, it is a crucial water source for the countries it spans and has been integral to the region's history.

Confident

Feeling or showing certainty about something or self-assurance.