Janine is analyzing spending habits of students in her high school. She finds a mean monthly discretionary expense of $70 spent on having meals out with friends. The standard deviation of a distribution is 5. What is the variance?

Jocelyn compiled data on the number of hours students work per week the summer after senior year. The minimum number of hours in the distribution was 23. The range was 17. If the maximum score in the distribution was M, and the range is r, express the minimum score algebraically.

An electric bill is an essential expense for young people who get their first apartment. The following is a list of Jordan's monthly electric bills for the past 10 months. $115,$150, $144,$126, $90,$90, $95,$110, $120,$88. Round your answers to the nearest cent. What is the mean monthly electric bill?

An orchestra of 25 members bought tickets, at all different prices, to a concert, and the mean price paid was $82. A new musician joined the orchestra and spent$90 on his ticket to the same concert. What is the new mean price paid when the new musician is included? Round to the nearest cent.

The Vetrone family members are all Cincinnati Reds baseball fans. They went to five games last season. The cost of each game, including parking, tickets, and food, is listed below. $266,$201, $197,$188, $162. Round your answers to the nearest cent. What is the variance?

Taking a cruise is a costly discretionary expense. In a recent year, the top five cruise lines in the world had this many passengers:

$$4,133,000 \quad 2,369,000 \quad 1,295,000 \quad 928,000 \quad 679,000$$

Round your answers to the nearest integer. What is the standard deviation? (Give the full number.)

The variance of a distribution is 195. What is the standard deviation, rounded to the nearest thousandth?

The Vetrone family members are all Cincinnati Reds baseball fans. They went to five games last season. The cost of each game, including parking, tickets, and food, is listed below. $266,$201, $197,$188, $162. Round your answers to the nearest cent. What is the range?

Taking a cruise is a costly discretionary expense. In a recent year, the top five cruise lines in the world had this many passengers:

$$4,133,000 \quad 2,369,000 \quad 1,295,000 \quad 928,000 \quad 679,000$$

Round your answers to the nearest integer. The computations will be easier to work if you view this problem in terms of thousands of passengers. Represent each number in terms of thousands of passengers.

Ralph wants to join a travel soccer team, a discretionary expense. His parents tell him he must get a job to earn the money to cover the costs. Ralph now views this discretionary expense as an essential expense since he must pay his parents back. The costs of the travel team are listed below.

$$\begin{array}{l|c} \text { Expense } & \text { cost } \\ \hline \text { Uniform } & \$ 67.00 \\ \text { Registration } & \$ 50.00 \\ \text { Tournaments } & \$ 775.00 \\ \text { Travel } & \$ 300.00 \\ \end{array}$$

Find the total cost of being on the team.

The Vetrone family members are all Cincinnati Reds baseball fans. They went to five games last season. The cost of each game, including parking, tickets, and food, is listed below. $266,$201, $197,$188, $162. Round your answers to the nearest cent. What is the standard deviation?

The Vetrone family members are all Cincinnati Reds baseball fans. They went to five games last season. The cost of each game, including parking, tickets, and food, is listed below. $266,$201, $197,$188, $162. Round your answers to the nearest cent. If all five members of the Vetrone family went to each game, what was the mean cost per person to attend each game?

Taking a cruise is a costly discretionary expense. In a recent year, the top five cruise lines in the world had this many passengers:

$$4,133,000 \quad 2,369,000 \quad 1,295,000 \quad 928,000 \quad 679,000$$

Round your answers to the nearest integer. What is the mean number of passengers for these five cruise lines? (Give the full number.)

An electric bill is an essential expense for young people who get their first apartment. The following is a list of Jordan's monthly electric bills for the past 10 months. $115,$150, $144,$126, $90,$90, $95,$110, $120,$88. Round your answers to the nearest cent. What is the range?