A bar graph in which the bars represent equally spaced intervals of numbers
What is a histogram
100
A graph of a collection of ordered pairs of numbers (x,y)
What is a scatter plot
100
This table shows the number of events or items in each interval
What is a frequency distribution
100
Name the 6 different graphs/charts we have discussed and used this chapter
What is a pictograph, bar graph, histogram, line graph, line plot, scatter plot
100
If the probability of rain is 0.8, decide whether you should bring an umbrella with you. Explain your answer.
Yes, there is an 80% chance that it will rain
200
A graph used to show trends over intervals of time
What is a line graph
200
If the y-coordinates tend to increase as the x-coordinates increase, x and y are said to have a....
What is positive correlation
200
How do you make a frequency distribution and use it to make a histogram...explain the process in detail.
Choose intervals and then tally the number of occurrences in each interval...
200
You have collected data and need to make a graph that shows the differences between men and women's suit color preferences (black, blue, gray, red, and brown). Which graph is best for showing the overall color preferences of men and women? Explain.
What is a double bar graph; because the number of men and women who prefer each color are represented by seperate, adjacent bars
200
Compare theoretical and experimental probability. Explain when to use each.
What is actual vs. set number of events used for making predictions/ use theoretical for figuring logical probabilities and experimental for results of a poll to make predictions
300
Choose the most appropriate graph for the given data about the growing percentage of American households that have VCR's. Explain your answer.
1980:1
1984:10
1988:57
1992:74
1996:81
What is a line graph; choose a line graph to show the change over time
300
This is used to approximate the pattern of the data points in a scatter plot IF there is a correlation in the data points
What is line of best fit
300
A table shows the ages (using intervals) of volunteers cleaning in a park. How do I find out the total number of volunteers?
What is add the number of occurrences in each interval together
300
Draw a scatter plot of the data. Use it to estimate the 1997 population.
Year/ Population (in millions)
1990/5.54
1991/5.60
1992/5.65
1993/5.71
1994/5.76
1995/5.80
What is about 5.9 million
300
Hakim rolled 2 fair six-sided number cubes (each numbered 1—6) and recorded the sum of the outcomes. How many different sums are possible?
What is 11
400
Which of these should you always do when making a bar graph:
a. Break the vertical axis
b. Show the scale on the vertical axis
c. Use bars that have unequal widths
d. Start the vertical axis at something other than zero
What is b; Show scale on vertical axis
400
Explain in detail how to draw a line of best fit on a scatter plot that appears to have correlation
explanation
400
Imagine 4 triangles, the first has a base of 2 units and a height of 2 units, the second has a base of 3 units and a height of 2 units, the third has a base of 4 units and a height of 2 units, the fourth triangle has a base of 5 units and a height of 2 units. Create a table that lists the base, height, and area of each triangle.
Check table
400
Bryan is making a circle graph to show what he does with his allowance. If he saves 15% of his allowance, what is the measure of the central angle for the sector of the graph labeled savings?
a.) 306°
b.) 153°
c.) 54°
d.) 27°
What is C
400
Matt has a bag containing 12 one-dollar bills and 8 five-dollar bills. Without looking, he pulls out one bill and places it on the table. He then picks a second bill from the bag. What is the probability he will have 2 five-dollar bills?
What is 8/20 x 7/19
500
In your own words, describe the meaning of statistics
What is a type of mathematics that involves organizing and representing data
500
Create a scatter plot of the data (x,y) shown below:
(0,1), (4,6), (3,3), (2,3), (7,9), (5,7), (6,6), (1,2)
Do x and y have a correlation? If so, what type? Draw a line of best fit.
See scatter plot; Positive correlation
500
Use the table created in the prior question to make a line graph showing how the base relates to the area.
Check graph
500
Each time you fill your car with gas, you divide the distance traveled (in miles) by the amount of gas used (in gallons). During the simmer, you do this twelve times. The results (in miles per gallon) are shown below. Use a line plot to organize the data. What do you observe?
24, 22, 20, 21, 24, 23, 22, 17, 25, 23, 21, 22
See line plot-Gas mileage is usually between 20 and 25 mpg
500
A fair number cube is labeled 1 to 6. If the cube is tossed 300 times, about how often would a prime number be expected to show up on the top face?