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WorksheetsAlgebra 2 Unit 2 Probability Practice
Total questions: 20
Worksheet time: 1hrs 19mins
A data set shows the number of minutes each of 153,477 students takes to complete a reading test. The median completion time is 110 minutes. The interquartile range is 34. Which statement about the completion times is MOST LIKELY to be true?
Of these students, 25% complete the test in 110 minutes or less.
Of these students, 50% complete the test in 110 minutes or less.
Of these students, 75% complete the test in 127 minutes or less.
Of these students, 75% complete the test in 144 minutes or less.
Marti has been keeping track of the number of visitors to her new website for the past 9 months. The line graph shows the data Marti recorded. Based on the trend shown in the graph, which will MOST LIKELY be the number of visitors to Marti's website for the 12 month?
5,000
6,000
8,000
10,000
Brent works at the tire store. He recorded the number of tires sold each day for two weeks in the stem-and-leaf plot. What is the median of the number of tires sold each day?
100
117
121
124
Hank counted the number of scratches on cars of different ages. Hank then created a scatter plot showing the relationship between the age of a car (x) and the number of scratches found on the car (y). Based on the line of best fit, which is most likely the number of scratches that could be found on a car that is 30 years old?
30
74
87
100
The graph shows how employees at Disney World travel to work. What is the probability that an employee, rides a bike, the bus, or walks to work?
1
74
76
75
Find the median of these numbers:
2, 3, 4, 5, 5, 5, 7,
3
4
5
6
Determine the IQR for this set of data.
240
50
40
230
How does the median number of miles driven for Driver A compare to the median number of miles driven for Driver B?
The median for Driver A is more than the median for Driver B.
The medians are the same
The median for Driver A is less than the median for Driver B.
One card is randomly picked from a regular deck of cards. What is the theoretical probability that the card picked is a jack?
1/13
1/4
3/16
1/10
Sarah, Sammie, Victor, Vicki, and Valerie are in math group. Two students are randomly picked to be the co-leaders. What is the probability that the students picked were Sammie and Victor?
1/25
2/5
1/5
1/20
Sarah, Sammie, Victor, Vicki, Valerie are in a math group. Two students are randomly chosen to be co-leaders. What is the probability that both students' names begin with the letter V?
3/5 times 3/5 = 9/25
3/5 times 1/2 = 3/10
1/5 times 2/5 = 2/15
3/5 times 1/4 = 3/20
Find the Quartile 1 (lower quartile) of the box and whisker plot.
60
62
64
66
Find the Quartile 3 (upper quartile) of the box and whisker plot.
58
64
60
66
