Algebra 1 Common Core Answers Student Edition Grade 8 – 9 Chapter 12 Data Analysis and Probability Exercise 12.4
Algebra 1 Common Core Solutions
Chapter 12 Data Analysis and Probability Exercise 12.4 1LC
Chapter 12 Data Analysis and Probability Exercise 12.4 2LC
Chapter 12 Data Analysis and Probability Exercise 12.4 3LC
Interquartile range: the interquartile range is defined as the length of the box or difference between third and first quartiles. The graph of the box-and-whisker plot shows that, the length of box of Alass B is more widely than the length of the box of Class k Therefore, the interquartile range of the Class B is greater than the interquartile range of the Class A.
Chapter 12 Data Analysis and Probability Exercise 12.4 4LC
Chapter 12 Data Analysis and Probability Exercise 12.4 5LC
Chapter 12 Data Analysis and Probability Exercise 12.4 6LC
Chapter 12 Data Analysis and Probability Exercise 12.4 7LC
No because the test is graded on scale, so it may be the point value between 0 and 100 The percentile ranke represent the percentage of data values that are less than of equal to the
values.
If the lowest grade is 78. and all other grade has the value greater than 78. then the percentile of grade 78 is not 78. Therefore, you can not says that if your score is 78 in the scale of 0 to loo your percentile must be 7W
Chapter 12 Data Analysis and Probability Exercise 12.4 8E
Chapter 12 Data Analysis and Probability Exercise 12.4 9E
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Chapter 12 Data Analysis and Probability Exercise 12.4 16E
The box of Cars is greater than the box of Trucks, so the cars have greatest interquartile range. This means that the 50% of the fuel efficiency cars are widely spread than the trucks.
The 50 % fuel efficiency of cars is lies in between the 18 to 20 miles. while on the other hand 50% of the fuel efficiency of truck is lies between the 14 to 15 miles. Therefore the fuel efficiency of is vary more widely than the trucks.
Chapter 12 Data Analysis and Probability Exercise 12.4 17E
Let us consider, Of lo test scores, six are less than or equal to 80 Let us find, what is the percentile rank of test score 80
Chapter 12 Data Analysis and Probability Exercise 12.4 18E
Let us consider, Of 35 judges’ scores. 28 are less than or equal to 75
Let us td. what is the percentile rank of a score 75
Chapter 12 Data Analysis and Probability Exercise 12.4 19E
Consider the statement given in the question:
Percentile rank is defined as the percentage of data values that are less than or equal to that value
Chapter 12 Data Analysis and Probability Exercise 12.4 20E
Chapter 12 Data Analysis and Probability Exercise 12.4 21E
Consider the statement given in the question:
Percentile rank is defined as the percentage of data values that are less than or equal to that value
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Let us consider, the median of 10 number of data set is 22, an interquartile range is 10, and a minimum less than 4 Make a data for the above information
Chapter 12 Data Analysis and Probability Exercise 12.4 23E
Chapter 12 Data Analysis and Probability Exercise 12.4 24E
a. The box-and-whisker plot of the Device 2. shows that the median is lies middle of the box and
for the Device 1 the median is not in the middle of the box So the box of Device 2 is more consistent than the box of Device 1 Therefore the package produce by device I is more consistent
b. The manufacturer choose device ito minimize the number of packages with weight less than
17 and more than 17.2. Since the box of the device 1 is smaller size than the box of the device 2. The box of device 2 is wider so its package size is greater than the device 1. Therefore the manufacturer choose the device I to minimize the number of packages with weight less than 17 and more than 17.2.
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Chapter 12 Data Analysis and Probability Exercise 12.4 26E
Let us consider. Of 100 people that take a test, nine have scores greater than 93. Then what is the percentile rank of a score 93
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Chapter 12 Data Analysis and Probability Exercise 12.4 28E
Range: The range of a set of data is the difference between the greatest and the least data values
The maximum and the minimum value in the set of data given in (1) are 120 and 32
respectively So the range is
Range= 120—32
=88
Range: 88
Chapter 12 Data Analysis and Probability Exercise 12.4 29E
Let us consider Jared can clear his driveway of snow in 36 min and his brother takes 48 min. then you have to find to the nearest minute. how long it takes to clear the driveway if both are work together.
Chapter 12 Data Analysis and Probability Exercise 12.4 30E
Chapter 12 Data Analysis and Probability Exercise 12.4 31E
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