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Statistics and Probability Flashcards | StudBud

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Statistics and Probability

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Questions 12

Answers

1
How do you calculate the Lower Fence?
Q1 + (1.5 x IQR)
Q3 + (1.5 x IQR)
Count sheep
Q1 - (1.5 x IQR)
2
To calculate the mode
Determine which points value occurs most often
Add up the points and divide by 8
Put the points in order and find the middle number
3
How is this stem and leaf plot best described?
Positively skewed with an outlier. Use the median.
Positively skewed. Use the median
Negatively skewed with an outlier. Use the median
Negatively skewed. Use the median
4
How do you calculate the IQR?
maximum-minimum
Q1-Q3
Q1+Q2
Q3-Q1
5
How would you calculate the Inter Quartile Range of the math test scores?
find the median of the scores
lower quartile minus upper quatile
upper quartile minus lower quartile
upper extreme minus the lower extreme
6
How do you calculate the mean?
Subtract the smallest number from the largest
place the numbers in value order and find the middle
find the number that appears most often
add all the numbers, then divide by how many there are.
7
What does the 'dot' represent in the top box plot?
a mistake
an outlier
a score not in the data
a score from the other data set
8
Which box plot has the larger range?
Neither
A
B
Both
9
In this stem and leaf plot, 9|4 means
94%
9.4%
$94
An "A"
10
To calculate the median
Put the points in order and find the middle number
Determine which points value occurs most often
Add up the points and divide by 8
11
What percent of the data does the entire box in a box and whisker diagram represent?
50%
25%
75%
33%
12
How do you calculate the Range?
The number in the middle of a set of Data.
Use a tape measure.
Subtract smallest number from the largest number.
The number in the middle of a set of Data.