Use the Appropriate Normal Distribution to Approximate the Resulting Binomial

question 31

Multiple Choice

Use the appropriate normal distribution to approximate the resulting binomial distribution. ​
Jorge sells magazine subscriptions over the phone. He estimates that the probability of his making a sale with each attempt is .12. What is the probability of Jorge making more than 10 sales if he makes 80 calls?
​

• A) The probability is 0.2709.
• B) The probability is 0.3465.
• C) The probability is 0.2599.
• D) The probability is 0.2683.

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Definitions:

Average Tax Rate

The fraction of total income that is paid in taxes, calculated by dividing the total tax amount by the total income.

Dollar Tax Liability

The amount of tax owed to the government, calculated in dollars, based on income, sales, imports, or other taxable activities.

Progressive Tax

A tax system in which the tax rate increases as the taxable amount increases, placing a larger burden on those who have higher earnings.

Average Tax Rate

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