You Were Told That the Mean Score on a Statistics

question 129

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%.What is the probability of a score between 60 and 95?

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Definitions:

Average Tax Rate

The ratio of the total amount of taxes paid to the total tax base (taxable income or spending), expressed as a percentage.

Taxable Income

The amount of an individual's or a corporation's income used to determine how much tax they owe, after exemptions and deductions are factored in.

Marginal Tax Rate

The rate of tax applied to the next dollar of taxable income, indicating the percentage of any additional income that will be taken as tax.

Average Tax Rate

The proportion of total income paid in taxes, calculated by dividing the total tax amount by the taxpayer's total income.