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Prob and Stats Quiz 1

Total questions: 17

Worksheet time: 51mins

Name
Class
Date
1.

Mrs. Delgado asks the first ten students at Clinton Elementary about what they think the new school's mascot should be. Identify the population and sample.

a)

Population: First ten students

Sample: All students at Clinton Elementary

b)

Population: All students at Clinton Elementary

Sample: First ten students

2.

Which would be a good Unbiased group?

a)

every third student entering the building

b)

every member of the varsity football team

c)

every member in Ms. Zimmer’s drama classes

d)

every student having a second-period French class

3.
7. A public library asked every 10th person who entered to name the type of book they were getting
a)
Biased
b)

Random

4.
1.  Carlos wants to know the favorite sport of people at his school so he asks his baseball team.
a)
Biased
b)

Random

5.

Maria collects data from a random sample of 7th graders in her school and finds that 16 out of 20 7th graders participate in after-school activities. How many students should Maria expect to participate in after-school activities if 240 total 7th graders attend Maria's school? Write the numerical answer only.

(a)  

6.
3.  A hospital wants to open a gym. They ask the night-shift ER staff when they would use the gym.
a)
Biased
b)

Random

7.
4. A company makes DVDs and randomly selects 25 from 1500 to test them to see if they work.
a)
Biased
b)

Random

8.
6. To see who has a computer at home the front office chooses 10 students randomly per grade to ask
a)
Biased
b)

Random

9.

Erick wants to know how many hours of sleep college students get, so he surveys the 12 students in the front row of his college English class.

a)

Biased

b)

Random

10.
How many trouts weighed MORE THAN 450 grams?
a)
8
b)
14
c)
11
d)
10
11.
How many students received a score of 94%? 
a)
94
b)
4
c)
1
d)
2
12.

How many students have 12 Brothers and Sisters? 

a)

4 students

b)

7 students

c)

0 students

d)

1 student

13.

Which of the following TWO statements are correct?


(You need 2 answers)

a)

Most people scored more than 2 points.

b)

30 fans were quizzed.

c)

More than half of the fans scores less than 4.

d)

More people scored 0 points than who scored 4 points.

14.

Which car club has the higher median?

a)

Cruisers

b)

Car Hops

c)

Neither, they are the same

15.

What do points B and D represent on the box plot?

a)

Mean and Mode

b)

Mean and Median

c)

Least and Greatest Value

d)

Upper and Lower Quartiles

16.

What do points A and E represent on the box plot?

a)

Mean and Mode

b)

Mean and Median

c)

Least and Greatest Value

d)

First and Third Quartiles

17.

What is the upper quartile of this data?

a)

40

b)

90

c)

100

d)

140

e)

150