1. The scores on a given test for ten students were as follows: 20, 15,...
1. The scores on a given test for ten students were as follows:
20, 15, 18, 38, 42, 51, 23, 26, 20, 11
- Find the mean.
- Find the median.
- Find the mode.
- Find the midrange.
-
Find Q1
-
Find P60
-
Find the percentile rank for the score 38.
-
Find the range.
2. Find the sample variance of the test scores. (Show work by hand to receive credit!)
3. Construct a box plot using the test score data.
4. Construct a frequency distribution with 6 classes. (Label class limits, boundaries, f, cf, rf, crf)
5. Construct a histogram for the test scores using relative frequencies.
Homework Answers
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1. The scores on a given test for ten students were as
follows:
20, 15,...
Given this sample of 20 golf scores: 82 68 62 125 81 79 88 95 97 ...
Given this sample of 20 golf scores: 82 68 62 125 81 79 88 95 97 108 66 135 126 118 82 79 87 65 120 136 1. Using the golf score data, make a Frequency Distribution with 5 classes. (label: c, cb, mp, f, cf, rf, crf) 2. Then, construct a Histogram for the data.
Please answer all questions! thanks :) VI/ Test scores from a math midterm are as follows:...
Please
answer all questions! thanks :)
VI/ Test scores from a math midterm are as follows: 79, 90, 85, 89, 70, 59, 75, 64, 83, 78, 75, 77, 78, 77, 67, 85, 74, 52, 87, 72, 69, 76, 61, 77, 93, 86, 79, 90, 74, 67, 51, 75, 77, 82, 78, 60, 86, 72, 91, 95, 82 Complete the frequency distribution table to include all data a. Class Tallies Class Midpoint Relative Cumulative Frequency relative freq boundaries Frequency 51 57...
2119a review 21242-Monday Test MAT 1272 Practice Exercises for testi 1. Use the following 20 values:...
2119a review 21242-Monday Test MAT 1272 Practice Exercises for testi 1. Use the following 20 values: 222, 233, 254, 241, 251, 268, 276, 220, 238, 253,249, 236, 247, 256, 261, 227, 257, 244, 239, 242 to perform the following tasks: a) Construct a frequency distribution table using 6 classes b) Draw a histogram for the frequency distribution in part (a). 2. The data set below is a sample of the Mathematics test scores of 10 students: 56, 96, 78, 67,...
2. The data set below is a sample of the Mathematics test scores of 10 students:...
2. The data set below is a sample of the Mathematics test scores of 10 students: 56, 96, 78, 67, 60, 69, 85, 90, 89, 72 (a) Find the mean and median of the given test scores. (b) Is there a mode value for these scores? Why or why not? (c) Find the range and standard deviation (nearest hundredth) of these scores. (d) Find the percentile rank of 78 (e) What percent of these scores are within 1 standard deviation...
The following are the entrance exam scores (percentages) of 15 randomly chosen students: 65 81 55...
The following are the entrance exam scores (percentages) of 15
randomly chosen students:
65 81 55 90 85
95 77 62 89 83
74 83 62 68 83
a. Calculate the range of the scores.
b. Determine the first, second and third quartiles.
c. Calculate the percentile rank of a person who has a score of
62%.
d. What is the score of a person who is in the 80th percentile
of the data?
e. Calculate the mean, median, and...
The scores on a mathematics test were 70, 55, 61, 80, 85, 72, 65, 40, 74,...
The scores on a mathematics test were 70, 55, 61, 80, 85, 72, 65, 40, 74, 68, and 84. Complete the accompanying table, and use the table to construct a frequency histogram for these scores. (the tally column is optional) Score Tally Frequency 40-49 50-59 60-69 70-79 80-89 Use the data from problem above to answer the following questions. Find the mean. Find the median. Find the mode. In what circumstance is the median the best measure of center?
1- Suppose there are only 38 students in advance statistics class and final scores of these...
1- Suppose there are only 38 students in advance statistics class and final scores of these 38 students are: 10 34 45 55 63 75 class lit 23 34 49 56 64 82 24 36 50 58 65 82 26 41 51 59 71 95- 32 41 52 60 73 33 45 54 62 74 s lin 46 54 63 74 a- Construct grouped frequency distribution table for this dataset with relative and cumulative frequencies (with closed intervals). b- Find...
1. Consider the following POPULATION of quiz scores {18, 23, 7, 20, 15, 12, 6, 23,...
1. Consider the following POPULATION of quiz scores {18, 23, 7,
20, 15, 12, 6, 23, 17, 16 }
Compute the following: the mean ,μ, the variance, σ2, the
standarddeviation, σ.
State the mode, if one exists __________
ApplytheEmpiricalRuleatthe95%level.
What percentage of these Quiz Scores actually lie within the
interval found in part c? _________________________
II. Again consider the given Quiz Scores: {18, 23, 7, 20, 15,
12, 6, 23, 17, 16 }
Determine Q1, the median, and Q3:
Draw...
Given the following test scores on exam #1 for INEN 370 during the summer 2017: Due...
Given the following test scores on exam #1 for INEN 370 during
the summer 2017:
Due Name Date: Tuesday, January 29, 2019 ISEN 370-Engineering Statistics Assignment # 2 Homework I.(60) Given the following test scores on Exam # 1 for INEN 370 during the Summer 2017 93 77 67 72 528366 84 59 63 75 97 84 73 814261 51 91 87 34 54 7 47 79 706557 90 83 58 69 82 76 716038 81 74 69 68 76...
Use the following collection of 30 test scores: 100, 65, 67, 61, 62, 70, 75, 73,...
Use the following collection of 30 test scores: 100, 65, 67, 61, 62, 70, 75, 73, 88, 77, 83, 79,95, 79, 8102, 86, 87, 87, 91, 87, 89, 92, 90, 99, 87, 72, 93, 79, 52 a. Construct a frequency distribution table using 6 classes: include classes, frequencies, class marks, class boundaries, relative frequencies, and relative percentages. b. Find the mean to the nearest tenth and sample standard deviation to the nearest tenth. c. Use the results from part b...
Please
answer all questions! thanks :)
VI/ Test scores from a math midterm are as follows: 79, 90, 85, 89, 70, 59, 75, 64, 83, 78, 75, 77, 78, 77, 67, 85, 74, 52, 87, 72, 69, 76, 61, 77, 93, 86, 79, 90, 74, 67, 51, 75, 77, 82, 78, 60, 86, 72, 91, 95, 82 Complete the frequency distribution table to include all data a. Class Tallies Class Midpoint Relative Cumulative Frequency relative freq boundaries Frequency 51 57...
2119a review 21242-Monday Test MAT 1272 Practice Exercises for testi 1. Use the following 20 values: 222, 233, 254, 241, 251, 268, 276, 220, 238, 253,249, 236, 247, 256, 261, 227, 257, 244, 239, 242 to perform the following tasks: a) Construct a frequency distribution table using 6 classes b) Draw a histogram for the frequency distribution in part (a). 2. The data set below is a sample of the Mathematics test scores of 10 students: 56, 96, 78, 67,...
The following are the entrance exam scores (percentages) of 15
randomly chosen students:
65 81 55 90 85
95 77 62 89 83
74 83 62 68 83
a. Calculate the range of the scores.
b. Determine the first, second and third quartiles.
c. Calculate the percentile rank of a person who has a score of
62%.
d. What is the score of a person who is in the 80th percentile
of the data?
e. Calculate the mean, median, and...
1- Suppose there are only 38 students in advance statistics class and final scores of these 38 students are: 10 34 45 55 63 75 class lit 23 34 49 56 64 82 24 36 50 58 65 82 26 41 51 59 71 95- 32 41 52 60 73 33 45 54 62 74 s lin 46 54 63 74 a- Construct grouped frequency distribution table for this dataset with relative and cumulative frequencies (with closed intervals). b- Find...
1. Consider the following POPULATION of quiz scores {18, 23, 7,
20, 15, 12, 6, 23, 17, 16 }
Compute the following: the mean ,μ, the variance, σ2, the
standarddeviation, σ.
State the mode, if one exists __________
ApplytheEmpiricalRuleatthe95%level.
What percentage of these Quiz Scores actually lie within the
interval found in part c? _________________________
II. Again consider the given Quiz Scores: {18, 23, 7, 20, 15,
12, 6, 23, 17, 16 }
Determine Q1, the median, and Q3:
Draw...
Given the following test scores on exam #1 for INEN 370 during
the summer 2017:
Due Name Date: Tuesday, January 29, 2019 ISEN 370-Engineering Statistics Assignment # 2 Homework I.(60) Given the following test scores on Exam # 1 for INEN 370 during the Summer 2017 93 77 67 72 528366 84 59 63 75 97 84 73 814261 51 91 87 34 54 7 47 79 706557 90 83 58 69 82 76 716038 81 74 69 68 76...
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