Chapter 11: Problem 39
Find \(1+2+3+4+\cdots+100,\) the sum of the first 100 natural numbers.
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Chapter 11: Problem 39
Find \(1+2+3+4+\cdots+100,\) the sum of the first 100 natural numbers.
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In a class of 50 students, 29 are Democrats, 11 are business majors, and 5 of the business majors are Democrats. If one student is randomly selected from the class, find the probability of choosing a. a Democrat who is not a business major. b. a student who is neither a Democrat nor a business major.
Use the formula for the value of an annuity to solve Exercises 77–84. Round answers to the nearest dollar. To offer scholarship funds to children of employees, a company invests \(\$ 10,000\) at the end of every three months in an annuity that pays \(10.5 \%\) compounded quarterly. a. How much will the company have in scholarship funds at the end of ten years? b. Find the interest.
Explaining the Concepts Explain how to find and probabilities with independent events. Give an example.
Some three-digit numbers, such as 101 and \(313,\) read the same forward and backward. If you select a number from all threedigit numbers, find the probability that it will read the same forward and backward.
Explaining the Concepts Write a probability word problem whose answer is one of the following fractions: \(\frac{1}{6}\) or \(\frac{1}{4}\) or \(\frac{1}{3}\)
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