Vocab
The area of variation between the upper and lower numbers
mean absolute deviation, interquartile range, variability, range, cluster
range
What is the range of the data points?
3, 2, 4, 4, 1, 5, 12
12 - 1 = 11
What is the upper quartile of these set of data points?
2, 3, 5, 6, 6, 7, 8
7
The graph has a _____ if there are a bunch of dots in one spot.
cluster, variability, or an outlier
cluster
What month is National Ice Cream Month in the United States?
July
A group of dots or numbers all close together
mean absolute deviation, interquartile range, variability, range, cluster
cluster
What is the median of the data points?
3, 2, 4, 4, 1, 5, 12
= 4
1, 2, 3, 4, 4, 5,12
What is the lower quartile of these set of data points?
2, 3, 5, 6, 6, 7, 8
3
B: median is 80
What is the difference between the 2 medians?
45
Which US state has the average hottest temperature?
Florida
lack of consistency or a pattern, spread widely
mean absolute deviation, interquartile range, variability, range, cluster
variability
What is the mode of these numbers?
3, 9, 40, 32, 3, 6, 3, 40
3
What is the interquartile range of these set of data points?
2, 3, 5, 6, 6, 7, 8
7 - 3 = 4
median: 6
lower: 3
upper: 7
The box is spread out in a box plot, would this have more or less variability?
more
How long does it take a watermelon take to grow?
1 month, 1 week, 1 year, 90 days
90 days
A stat measure that shows spread of the MIDDLE of the data set (subtracting the medians)
mean absolute deviation, interquartile range, variability, range, cluster
interquartile range
What is the mean of the data points?
5, 7, 6, 8, 5, 7, 6, 4
6
48 divided by 8 = 6
What is the interquartile range of these set of data points?
4, 5, 5, 5, 7, 9, 9, 9, 9, 9
4
Median is 8, median of lower is 5, median of upper is 9
9 - 5 = 4
On a box plot, 3 of the 4 sections are included. What percent is this?
75%
What percentage of watermelons are water?
80%, 15%, 92%, 58%
92%
A stat measure that describes how spread out data values are in a set (finding mean, subtracting the mean from numbers then finding the mean of those)
mean absolute deviation, interquartile range, variability, range, cluster
mean absolute deviation
What is the median of these numbers?
2, 6, 3, 4, 2, 2
2.5
What is the mean absolute deviation of the data points? Round to the nearest tenth.
7, 7, 6, 8, 6, 6, 9
= .9
.8571 round to nearest tenth
Mean: 7
The MAD (mean absolute deviation) of Helen's score is about ___ times of John's score.
Helen's 5.3
John's is 2.3
Round to the nearest tenth
2.3
On what one of two dates does the Summer Solstice occur?
June 20th or 21st