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:

Present Value

The worth at present of an upcoming monetary sum or flow of cash, given a predetermined return rate.

Maintenance Payments

Periodic payments made for the upkeep or support, often legally mandated in cases like alimony or child support.

Compounded Quarterly

The process of calculating interest added to the principal balance of an investment or loan every three months, leading to interest earned on interest.

Present Value

The contemporary valuation of a future money sum or cash flow series, based on a defined rate of interest.