Mean, Median, Mode
What is the mode? 1.06,9.3,59.59,6.01,25.17,1.06,6,1.06,0.7
1.06
what is the range 5 ,10, 17, 19, 35.3, 34, 56, 7, 1.7
56−1.7=54.3
What fraction or percentage of data is in each of the 4 sections of a box and whisker plot.
25%
What measure of center is the number that appears most often?
Answer: Mode
Find the lower quartile 5 10 15 20 25
lower quartile (Q1) is 7.5.
What is the median?
93, 47, 37, 49, 25, 12, 13, 57
42
what is the median 33, 4, 5 ,6 ,10 ,15 ,17, 18 ,19, 21, 29
17
What is a histogram?
A histogram shows numerical data grouped into intervals, and the bars touch.
What type of distribution has a tail stretching to the left?
Answer: Left skewed
What is the upper quartile 5 10 15 20 25?
upper quartile (Q3) is 22.5.
What is the median?
103, 2, 23, 156.5, 105.5, 145
104.25
what is the second quartile? 29 34 39 43 73 91 198
second quartile (Q2) is 43
What is the difference between a histogram and a bar graph?
What is the answer to a division problem called?
Answer: Quotient
Which data display cannot usually be used to find the exact mean?
Histogram
Whats the mean? 1, 1, 2, 3, 4, 4, 5, 6, 7, 8
41 /10 = 4.1
Whats quartile 1? 35, 49, 53, 69, 69, 77, 84
Quartile 1 (Q1) = 49.
What are the three types of data distribution shapes?
Evenly distributed, skewed left, and skewed right.
write an expression with the sum of 2x and 27y
2x +27y
what does a box and whisker plot display?
A box-and-whisker plot displays:
This is called the five-number summary.
What is the average grade for a student who's grades are: 13, 27.3, 69, 69, 23, 97.
298.3 / 6 = 49.7
Find the IQR of the data set. 30, 45, 46, 72, 78, 89, 99, 100, 100
Median = 78
q1 = 45.5
q2 = 99.5
IQR= 99.5-45.5 = 54
What are the measures of center that you can find or calculate by looking at a dot-plot?
What vocabulary word describes a data distribution with a long tail stretching to the right?
answer is right skewed.
What do we call how spread out a set of data is?
Variability tells how spread out the data is.
Common ways to measure variability are: