Statistics and Probability

Kara categorized her spending for this month Into four categories: Rent. Food. Fun. and Other. The amounts she spent in each category are pictured here. q What percent of her total spending did she spend on Fun? Answer to the nearest whole percent. A political scientist surveys 32 of the current 1 10 representatives in a state's legislature. What Is the size of the sample: [:] What Is the size of the population: [:1 The city of Raleigh has 8400 registered voters. There are two candidates for city council In an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 500 randomly selected registered voters was conducted. 185 said theyd vote for Brown. 300 said they'd vote for Feliz, and 15 were undecided. Give the sample statistic for the proportion of voters surveyed who said they'd vote for Brown. Note: The proportion should be a fraction or decimal, not a percent. This sample statistic suggests that we might expect :I of the B400 registered voters to vote for Brown. Margo borrows $1400. agreeing to pay It backwith 6% annual interest after 15 months. How much interest will she pay? Round your answer to the nearest cent. If necessary. A reijree invests $6,000 in a savings plan that pays 7% per year. Whatwill the account balance be at the end ofthe rst year? You deposit $300 in an account earning 4% interest compounded annually. How much will you have In the account in 20 years? You deposit $3000 in an account earning 3% interest compounded monthly. How much will you ave In the account In 15 years? Find the nal amount of money In an account If 85, 300 Is deposited at 6 '7"; interest corn pounded quarterly (every 3 months) and the money is left for 8 years. The nal amount is S :} Round answer to 2 decimal places How much would you need to deposit In an account now In order to have 53000 in the account in 5 years? Assume the account earns 2% Interest compounded monthly