Exam 10: Statistics

The gross profits for January at Tower Center for the five departments were: Appliance Department, $20,000 Automotive Department, $10,000 Clothing Department, $55,000 Grocery Department, $260,000 Nursery Department, $15,000 Find the percentages of the total earned by each department. Then, change each of the percentages to degrees.

FIGURE 1. When a person in California renews the registration for an automobile, the bar graph in Figure 1 is included with the bill. In the gray zone, your chances of having an accident are 5 times higher than if you had no drinks. In the red zone, your chances of having an accident are 25 times higher. Suppose that you weigh 100 pounds and that you have 2 drinks in 1 hour. If you then drive, how much more likely are you to have an accident than if you had refrained from drinking? __________ times more likely

What is the definition of statistics ?

The purchasing power of the dollar (1967 = $1) is (to the nearest cent) represented in the graph below. Find the purchasing power of the dollar in: $1982$ : __________ $1984$ : __________ $1986$ : __________

According to the Specialty Coffee Association, the cost of a $1.80 latte includes $0.24 for the coffee bean and milk, $0.19 for dishes and equipment, $0.45 for rent, $0.17 for marketing and administrative costs, $0.67 for labor, and $0.08 profit. Find each of these amounts as a percentage of the cost of a latte to the nearest tenth of a percent.

The amount of electricity used in a typical all-electric home is shown in the circle graph below. If, in a certain month, a home used 1,400 kwh (kilowatt-hours), find the amount of electricity used for the stove from the graph. Round your answer to the nearest kwh.

The heights of 20 students are as follows (rounded to the nearest inch). 66, 68, 65, 70, 67, 67, 70, 66, 69, 70, 68, 67, 67, 65, 69, 65, 67, 66, 69, 70 The bar graph below is drawn to scale. If the bar labeled A corresponds to the smallest recorded height and F corresponds to the largest, decide how many units tall each bar should be. Enter these numbers in the corresponding blanks below. A = __________, B = __________ C = __________, D = __________ E = __________

According to the Specialty Coffee Association, the cost of a $1.73 latte includes $0.25 for the coffee bean and milk, $0.19 for dishes and equipment, $0.44 for rent, $0.18 for marketing and administrative costs, $0.59 for labor, and $0.08 profit. Find each of these amounts as a percentage of the cost of a latte to the nearest tenth of a percent. dishes and equipment: __________ % coffee bean and milk: __________ % marketing: __________ % labor: __________ % profit: __________ % rent: __________ %

The gross profits for January at Tower Center for the five departments were: Appliance Department, $20,000 Automotive Department, $10,000 Clothing Department, $55,000 Grocery Department, $265,000 Nursery Department, $10,000 Use this information to determine the percentage of the gross profit in each region of the circle graph below. A = __________%, B = __________%, C = __________%, D = __________%, E = __________%.

The wages of employees of a small accounting firm are as follows: cellpadding="0" cellspacing="0" width ="97\%" border="1"> \ 20000,\ 15000,\ 15000,\ 25000,\ 30000,\ 30000,\ 35000,\ 50000,\ 60000,\ 18000 , \ 18000,\ 16000,\ 14000 Find the frequency distribution for the following groupings of the salaries: $1-$20,000 $20,001-$30,000 $30,001-$40,000 $40,001-$50,000 Over $50,000. Select the correct answer.

10,000 respondents were asked the following question. If the election for U.S. Senate were being held today, for whom would you vote? Use the bar graph below to answer the questions that follow. What percent of the voters favored Jones in January? In which month was the undecided vote the greatest? In which month was Jones s lead the greatest?

According to the Specialty Coffee Association, the cost of a $1.77 latte includes $0.23 for the coffee bean and milk, $0.19 for dishes and equipment, $0.48 for rent, $0.16 for marketing and administrative costs, $0.62 for labor, and $0.09 profit. Find each of these amounts as a percentage of the cost of a latte. Use the percentages to find the proper number of degrees for each piece of the circle graph below. Round your answers to the nearest degree.

FIGURE 1. When a person in California renews the registration for an automobile, the bar graph in Figure 1 is included with the bill. If you weigh 90 pounds, how many drinks in 4 hours would you need to be definitely illegal to drive? __________ drinks

FIGURE 1. When a person in California renews the registration for an automobile, the bar graph in Figure 1 is included with the bill. In the gray zone, your chances of having an accident are 5 times higher than if you had no drinks. In the red zone, your chances of having an accident are 25 times higher. Suppose that you weigh 100 pounds and that you have 2 drinks in 2 hours. If you then drive, how much more likely are you to have an accident than if you had refrained from drinking?

The wages of employees of a small accounting firm are as follows. cellpadding="0" cellspacing="0" width=" 91\%" border="1"> \ 20000,\ 15000,\ 15000,\ 25000,\ 30000,\ 30000,\ 35000,\ 50000,\ 60000,\ 18000 , \ 18000,\ 16000,\ 14000 Find the frequency distribution for the following groupings of the salaries: $1-$20,000 __________ $20,001-$30,000 __________ $30,001-$40,000 __________ $40,001-$50,000 __________ Over $50,000 __________

The purchasing power of the dollar (1967 = $1) is (to the nearest cent): 1966, $1.03; 1968, $0.96; 1970, $0.86; 1972, $0.80; 1974, $0.68 Select the line graph that correctly represents the data.

The gross profits for January at Tower Center for the five departments were: Appliance Department, $20,000 Automotive Department, $10,000 Clothing Department, $55,000 Grocery Department, $25,000 Nursery Department, $15,000 Find the percentages of the total earned by each department, change each of the percentages to degrees, to the nearest whole number, then draw a circle graph of these data. Appliances: __________ degrees Automotive: __________ degrees Clothing: __________ degrees Grocery: __________ degrees Nursery: __________ degrees

The heights of 20 students are as follows (rounded to the nearest inch). 66, 68, 65, 70, 70, 70, 68, 66, 69, 70, 68, 67, 67, 65, 69, 65, 67, 66, 69, 69 Prepare a frequency distribution for this data. Then, enter the number of data points in each category below. 65: __________ 66: __________ 67: __________ 68: __________ 69: __________ 70: __________

The gross profits for January at Tower Center for the five departments were: Appliance Department, $20,000 Automotive Department, $10,000 Clothing Department, $55,000 Grocery Department, $261,000 Nursery Department, $14,000 Use this information to determine the percentage of the gross profit in each region of the circle graph below.