Scores on a Recent National Statistics Exam Were Normally Distributed

question 166

Short Answer

Scores on a recent national statistics exam were normally distributed with a mean of 80 and a standard deviation of 6.
a.What is the probability that a randomly selected exam will have a score of at least 71?
b.What percentage of exams will have scores between 89 and 92?
c.If the top 2.5% of test scores receive merit awards, what is the lowest score eligible for an award?
d.If there were 334 exams with scores of at least 89, how many students took the exam?

Acknowledge the social construction of gender and its implications.

Determine the most reliable sources of family health history information.

Recognize conditions significantly influenced by family health history.

Identify consistent risk factors across an individual's lifespan.

---

Definitions:

Less Dense

Refers to materials having a lower mass per unit of volume, indicating fewer particles or less mass in a given space.

Back Pain

A common physical discomfort or ailment affecting the lumbar, thoracic or cervical regions of the spine, often due to strain, injury or other health conditions.

Eating Disorder

A mental disorder characterized by abnormal or disturbed eating habits that negatively affect a person's health or well-being.

Binges

Episodes of excessive indulgence in activities such as eating, drinking, or shopping, typically seen in context with disorders or as occasional behavioral excesses.