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Probability and Statistics Flashcards | StudBud
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Probability and Statistics
Probability and Statistics
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Basic Probability
Flashcards
32 cards
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Practice quiz
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Questions
32
Answers
1
What does a box and whisker plot contain?
Mean
Outlier
Median
Mode
2
How do you find the upper quartile on a box and whisker plot?
the median of the data set
the median of the upper half of values
the median of the lower half of values
3
What is the probability of the spinner NOT landing on yellow?
100%
12.5%
75%
33.3%
4
What is the middle quartile on a box and whisker plot?
median
mean
mode
IQR
5
What is the probability of picking a blue marble?
\frac{1}{7}
\frac{2}{5}
\frac{7}{2}
\frac{2}{7}
6
What is the probability of NOT picking a blue marble?
\frac{1}{4}
2 out of 8
\frac{4}{5}
\frac{2}{10}
7
What is the probability of the spinner landing on red or blue?
60%
37.5%
62.5%
30%
8
Find the MEAN....
4
15
6
30
9
P(purple)
\frac{3}{8}
\frac{3}{5}
\frac{5}{2}
\frac{7}{8}
10
A spinner has 5 sections. It was spun & the results are shown. How many times would you spin if you want a red 25 times?
1200
200
188
6
11
What is the range of this box and whisker plot?
100
65
80
35
12
Compare the box plots. Which is TRUE?
Range of Sophie's cafe is greater than Red Brick Grill.
Median prices are the same for Red Brick Grill and Sophie's.
The data for both Red Grill & Sophie's Cafe are symmetrical
Range for Red Brick Grill is greater than Sophie's Cafe.
13
P(red or yellow)
9 out of 10
\frac{2}{5}
5 out of 10
\frac{2}{10}
14
Which is FALSE about the box & whisker plot?
minimum is 65
median is 80
1st quartile is 75
maximum is 100
15
Find the MEDIAN....
22
24
23
26
16
Compare the Box plot. Which statement is FALSE?
Neither box plot is symmetrical
spreads of low temperatures for both towns are different
median low temperatures for Reybold & Picktown are different
The IQR for both towns are the same.
17
What is the probability of picking a red marble?
2 out of 5
1 out of 4
5 out of 7
5 out of 2
18
Find the MEDIAN......
Romance
Drama
Action
19
Compare the box and whisker plots shown.
The median length of Mario and Nikki's calls is the same.
Paula made the fewest number of calls.
Mario made 50% more calls than Paula.
All of Nikki's calls were longer than all of Paula's calls.
20
Find the median.
-3 and 0
none of the above
-3
0
21
Order the probabilities from
most to least
likely to occur. P(all H), P(at least one H), P (exactly 2 H).
P(at least 1 H), P(all H), P(exactly 2 H)
P(at least 1 H), P(exactly 2 H), P (all H)
P(all H), P(exactly 2 H), P(at least 1 H)
P(all H), P(at least 1 H), P(exactly 2 H)
22
Which box and whisker has a lower quartile of 22?
B
C
D
A
23
The tree diagram shows a player versus an opponent in rock, paper, scissors. What is the probability of a tie?
\frac{2}{3}
3
\frac{3}{21}or\frac{1}{7}
\frac{1}{3}
24
What is the upper extreme on a box and whisker plot?
lowest value
mode
highest value
median
25
Tree diagrams are used in probability to visually show:
Pictures
Answers
Sample Space
Numbers
26
In this box and whisker plot, what is Q3?
90
70
80
100
27
A spinner has 5 sections. It was spun & the results are shown. How many times would you expect purple in 900 spins?
10/48
10
48
188
28
Find the mode
-1.5
0
none
-3
29
Find the mean.
-3 and 0
-3
0
none of the above
30
What is the probability of picking a green marble?
4 out of 6
8 out of 8
4 out of 10
6 out of 10
31
What do tree diagrams do?
Count trees
Flip coins
analyzing numerical data in large quantities
Display outcomes of an event
32
What is the lower quartile on a box and whisker plot?
median
the median of the lower half of data
the median of the upper half of data
lower value
