A Student Asked a Statistics Professor If Grades Were Marked

question 72

Multiple Choice

A student asked a statistics professor if grades were marked "on the curve." The professor decided
To give the student a project to determine if last year's statistics grades were normally distributed.
The professor told the student that last year's mean mark was 70 with a standard deviation of 10
And to use the following results.
What is the expected number of grades above B?

• A) 18.25
• B) 20.00
• C) 13.59
• D) 15.87
• E) 15.63

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Definitions:

Never Have Enough Time

A common perception or feeling that there is not enough time to accomplish all tasks or goals, often related to stress and time management issues.

No-Collar Workers

A “free agent” worker with a nontraditional career path who engages in creative, “knowledge work” and rejects the idea of stable, long-term employment at a single company; creation of ideas (“symbol manipulators”), not things.

Disengagement

The process of withdrawing or distancing oneself from a particular role, activity, or involvement.

Ascribe Selves

The concept of identities or roles that are assigned to an individual by society, rather than chosen by the individual.