The accompanying frequency distribution of fracturestrength (MPa) observations for ceramic bars fired in aparticular kiln appeared in the article “Evaluating TunnelKiln Performance” (Amer. Ceramic Soc. Bull., Aug.1997: 59–63).Class 812,83 832,85 852,87 872,89 892,91Frequency 6 7 17 30 43Class 912,93 932,95 952,97 972,99Frequency 28 22 13 3a. Construct a histogram based on relative frequencies,and comment on any interesting features.b. What proportion of the strength observations are atleast 85? Less than 95?c. Roughly what proportion of the observations are lessthan 90?
The accompanying frequency distribution of fracturestrength (MPa) observations for ceramic bars fired in aparticular kiln appeared in the article “Evaluating TunnelKiln Performance” (Amer. Ceramic Soc. Bull., Aug.1997: 59–63).Class 812,83 832,85 852,87 872,89 892,91Frequency 6 7 17 30 43Class 912,93 932,95 952,97 972,99Frequency 28 22 13 3a. Construct a histogram based on relative frequencies,and comment on any interesting features.b. What proportion of the strength observations are atleast 85? Less than 95?c. Roughly what proportion of the observations are lessthan 90?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 34PPS
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The accompanying frequency distribution of fracture
strength (MPa) observations for ceramic bars fired in a
particular kiln appeared in the article “Evaluating Tunnel
Kiln Performance” (Amer. Ceramic Soc. Bull., Aug.
1997: 59–63).
Class 812,83 832,85 852,87 872,89 892,91
Frequency 6 7 17 30 43
Class 912,93 932,95 952,97 972,99
Frequency 28 22 13 3
a. Construct a histogram based on relative frequencies,
and comment on any interesting features.
b. What proportion of the strength observations are at
least 85? Less than 95?
c. Roughly what proportion of the observations are less
than 90?
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