WorksheetsProbability
Total questions: 20
Worksheet time: 56mins
Name
Class
Date
1.
At a middle school, the 7th graders will conduct a survey for where to go on a field trip. Which method will result in the least biased decision?
a)
to randomly ask 8th grade students who went on a field trip last year
b)
to randomly choose some 7th grade students to select a location
c)
to ask all 7th grade teachers and administrators for a location
d)
to ask the student council to choose a location
2.
The part of the population being studied
a)
population
b)
sample
c)
random
d)
biased
3.
The entire group studied.
a)
sample
b)
population
c)
outcomes
d)
tree diagram
4.
What is the interquartile range (IQR) of the data set?
a)
20
b)
25
c)
5
d)
10
5.
Which city has a higher median?
a)
Millersburg
b)
Arcadia
6.
Extreme values are also known as what?
a)
interquartile ranges
b)
modes
c)
medians
d)
outliers
7.
Which number represents the mode? 8,10,12,14,16,18,20
a)
10
b)
16
c)
no mode
d)
18
8.
What is a the meaning for "median"?
a)
fair share
b)
middle
c)
repeats the most
d)
variation
9.
Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Roger's scores?
a)
193
b)
127
c)
60
d)
66
10.
Identify the outlier for the given data?
23, 34, 27, 7, 30, 26, 28, 31, 34
23, 34, 27, 7, 30, 26, 28, 31, 34
a)
7
b)
23
c)
31
d)
34
11.
Find the median, mode and range:
3, 5, 7, 9, 11, 8, 3
3, 5, 7, 9, 11, 8, 3
a)
median:7 mode:3 range:8
b)
median:6 mode:3 range:7
c)
median:3 mode:7 range:8
d)
median:9 mode:3 range:1
12.
Find the Mean Absolute Deviation: 10, 9, 3, 8, 10. The Mean is 8
a)
3
b)
5
c)
1
d)
2
13.
What data value is the upper quartile (Q3)?
a)
64
b)
62
c)
66
d)
58
14.
What percent of the data is between 25 and 30 on the number line?
a)
25%
b)
`50%
c)
75%
d)
100%
15.
The tree diagram shows the outcomes of rolling a die and flipping a coin.
How many total outcomes are there?
How many total outcomes are there?
a)
6
b)
12
c)
24
d)
36
16.
The tree diagram shows the outcomes of rolling a die and flipping a coin.
What is the probability of rolling an even number and flipping a head?
What is the probability of rolling an even number and flipping a head?
a)
3/12
b)
1/2
c)
4/12
d)
0/12
17.
The following M & M colors are in the bowl:
4 yellow, 7 orange, 3 green, 5 blue
What is the probability of selecting a brown candy?
4 yellow, 7 orange, 3 green, 5 blue
What is the probability of selecting a brown candy?
a)
unlikely
b)
certain
c)
equally likely
d)
impossible
18.
Probability can be written as ...
a)
a fraction
b)
a decimal
c)
a percent
d)
all of the above
19.
A bag contains some red-colored and some blue-colored marbles. First a red-colored marble is drawn and then, without replacing the first marble, a blue-colored marble is drawn. Are the two events dependent or independent?
a)
Independent
b)
Dependent
20.
There are 5 red roses, 3 yellow roses, and 8 white roses in a tray. If Stephanie picked 2 roses one after the other without replacing, then what is the probability of picking a white rose first and a red rose next?
a)
1/6
b)
5/6
c)
1/3
d)
2/3
100 %
