Post on 18-Jan-2016
transcript
Histograms
Histograms
Num
ber
of F
low
ers
12
10
8
6
4
2
08 – 12 13 – 17 18 – 22 23 – 27 28 – 32
Height (in centimeters)
Flower Heights
The x-axis label shows the groups of data. Above, the groups are flower heights in centimeters.
Reading a Histogram:
The x-axis shows the range for each group. Above, the range for each group is 5 centimeters.
The y-axis label describes the scale. Above, the scale shows the number of flowers.
The y-axis shows the scale. Above, the scale is 0 to 12 flowers in intervals of 2.
Interpret Histograms
How many flowers have heights above 22 centimeters?
How many flowers are between 13 and 22 centimeters high?
How many flowers are above 17 centimeters and below 28 centimeters?
How many flowers are less than 18 centimeters high?
Num
ber
of F
low
ers
12
10
8
6
4
2
08 – 12 13 – 17 18 – 22 23 – 27 28 – 32
Height (in centimeters)
Flower Heights
Interpret Histograms
How many flowers have heights above 22 centimeters? 17
How many flowers are between 13 and 22 centimeters high? 13
How many flowers are above 17 centimeters and below 28 centimeters? 18
How many flowers are less than 18 centimeters high? 9
Num
ber
of F
low
ers
12
10
8
6
4
2
08 – 12 13 – 17 18 – 22 23 – 27 28 – 32
Height (in centimeters)
Flower Heights