You Were Told That the Mean Score on a Statistics

question 57

Short Answer

You were told that the mean score on a statistics exam is 75 with the scores normally distributed.In addition,you know the probability of a score between 55 and 60 is 4.41% and that the probability of a score greater than 90 is 6.68%.The middle 95.46% of the students will score between which two scores?

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Definitions:

Denominated

Indicates the currency in which a financial transaction is specified or an investment is made.

Expected Return

The anticipated average return on an investment under normal conditions, taking into account both the probability of each outcome and the return of each outcome.

Portfolio

A collection of financial investments like stocks, bonds, commodities, cash, and cash equivalents, including mutual funds and ETFs.

Covariance

A measure used in statistics to determine how two variables move together, indicating the degree to which they are correlated.