How do we find the mean?

Add the numbers and divide by the quantity of numbers

How do we find the median?

Order the numbers from least to greatest, and then find the middle

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Probability and Statistics Review 7R

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Questions 21

Answers

1
What is the range of a data set?
Q3 - Q1
Upper quartile - Lower quartile
Minimum - Maximum
Maximum - Minimum
2
What is the interquartile range (IQR) of a data set?
Maximum - Minimum
Q2 - Q1
Greatest number - lowest number
Q3 - Q1
3
How do we find the mean?
Add the numbers and divide by the quantity of numbers
The quantity of numbers divided by the sum of the numbers
The quantity of numbers divided by the product of the numbers
Multiply the numbers and divide by the quantity of numbers
4
The word "or" in probability means to
Divide
Multiply
Add
Subtract
5
Complementary events are two events that are _______________ to each other
Similar
Cousins
Complements
Outcomes
6
What 5 values do we plot on a box plot?
Min, Q1, Q2/Median, Q3, Max
Q1, Q2/Median, Q3, Q4, 100
0, Q1, Q2/Median, Q3, Q4
0, 25, 50, 75, 100
7
How do we find the median?
Find the number that appears the most
Add the numbers and divide by the quantity of numbers
Find the middle of the numbers (it doesn't matter if it is in order)
Order the numbers from least to greatest, and then find the middle
8
What is another name for mean?
Middle
Average
Most common
Sum
9
The word "and" in probability means to
Subtract
Divide
Add
Multiply
10
P(A)+P(not A)=_______
1
1%
0%
2
11
All probabilities fall between (two correct answers)
0 and 1
0% and 100%
1 and 2
0% and 1%
12
How would you describe a probability of 2/3?
Unlikely
Certain
Likely
Equally likely
13
Probability is the _____________ that an event will occur
Outcome
Options
Number of times
Likelihood
14
Which of the following is *NOT* another name for Q1?
Upper quartile
Lower quartile
Quartile 1
25th percentile
15
Which of the following is *NOT* another name for the median?
50th percentile
The mean
Q2
Quartile 2
16
How would you describe a probability of 100% or 1?
Impossible
Certain
Likely
Equally likely
17
What is the mode in a data set?
The most common element
The middle number
The average
The median
18
The fundamental counting principle helps us find the total number of
Likelihoods
Probabilities
Events
Outcomes
19
A data set 1 with a larger IQR than data set 2 has...
Less Predictability
No Variation
More Predictability
Less Variation
20
Which of the following IS another name for the the Upper Quartile?
25th percentile
Lower Quartile
Q2
Q3
21
A data set 1 with a smaller IQR than data set 2 has...
No variation
Less variation
No predictability
Less Predictability

Probability and Statistics Review 7R Flashcards | StudBud