WorksheetsStatistics Practice Quiz
Total questions: 12
Worksheet time: 1hrs 13mins
Identify the Population:
Cherokee County Schools randomly selected 230 teachers to find out which technology resource its teachers feel is the most effective. What is the population in this situation?
230 Teachers
All Cherokee County teachers
All Cedar Bluff teachers
All Sand Rock and Spring Garden students
Identify the Sample:
The Huddle House wants to know if their customers buy dessert when they eat out. As people leave the restaurant one evening, 20 people are surveyed at random. Eight people say they usually order dessert when they eat out. The manager at Huddle House concluded that most customers do not order dessert. What is the SAMPLE in this scenario?
20 customers from Huddle House
All customers from Huddle House that evening
8 customers from Huddle House
The employees from Huddle House
Mrs. Cathy wants to know how many students at Cedar Bluff enjoy solving math word problems. What is the best sampling method?
ask for 20 volunteers to discuss whether they enjoy solving math word problems
ask the last 20 people to arrive at CB this morning
Randomly ask 2 students in the hallway by Mr. B's room
Ask every 20th student that walks into school
Litzy collects data from a random sample of 7th graders. Out of 40 respondents, 7 attend afterschool programs. Of the 200 7th graders attending Litzy's school, how many would be expected to attend afterschool programs?
14 7th graders
28 7th graders
35 7th graders
42 7th graders
100 80 70 90 100
2, 57, 38, 42, 6
What is the IQR of the following Data Set:
32, 35, 36, 39, 40, 44, 48, 49
Q1:35
Q2: 39
Q3: 46
IQR: 46 - 35 = 11
Q1: 35
Q2: 39
Q3: 48
IQR: 48 - 35 = 13
Q1: 35
Q2: 39
Q3: 44
IQR: 44 - 35 = 9
Q1: 35
Q2: 39
Q3:46
IQR: 39 - 35 = 4
Find the IQR.
10, 14, 20, 15, 12, 13, 24
8
12
14
20
What is the interquartile range of this data?
162, 184, 205, 248, 192, 236, 268, 282,
120
95
70
72
The number of pages that Mia wrote in her journal each day from Monday to Friday is shown below:
9, 8, 12, 11, 20
What is the mean number of pages she wrote per day?
5
6
9
12
