Homework Answers
Ans:
| x | f | P(x)=f/30 | P(X<=x) |
| 3 | 4 | 0.1333 | 0.133 |
| 4 | 4 | 0.1333 | 0.267 |
| 5 | 6 | 0.2000 | 0.467 |
| 6 | 8 | 0.2667 | 0.733 |
| 7 | 5 | 0.1667 | 0.900 |
| 8 | 3 | 0.1000 | 1.000 |
Upper quartile(Q3) is the data value below which 75% of the data falls.
So,
Upper quartile(Q3)=7
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uestion 3 The following table shows the number of passes obtained by students in a class...
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How do you find the number of students in each class?
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The
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how do you find the number of students in each class?
10) The box plots below show Exam Scores for two classes. Use the information displayed to answer the questions below. Make sure to provide evidence from the box plots to support your responses, Each part is worth 5 points. Prva Avg Q3 Max Min Class A Mi May Class B Exam Scores A) Compare the variability (the spread of the data) between the two class's exam scores. tic ovrngl...
(9 marks) 6) The data below shows the mass of 40 students in class. The measurement is the nearest kg. 55 70 57 73 55 64 60 48 59 72 58 54 69 51 63 78 75 64 65 57 71 78 76 62 66 62 61 53 67 49 76 63 63 76 52 76 71 61 56 71 A) Construct a frequency distribution table with 7 classes for the data given above? B) Draw the histogram for the...
The
following table shows the results obtained on a standardized math
test by a random sample of 5 students selected from students
enrolled in a score improvement training program across the nation.
Assuming the math test scores are normally distributed compute the
margin of error for a 99% confidence interval to estimate the
average math score of students enrolled in the program. Use 3
decimals
Student Math scores 1. 2. 3. 4 5 6.9 9.3 13.6 12.4 9.6
The following table provides information on a sample of students in my class. Use the data in the table to answers the questions that follow (show all calculations involved) and describe the typical student in my class. School Year Standing FRESHEMAN SOPHOMORE Major ECONOMICS MARKETING MANAGEMENTJUNIOR MARKETING Age(Years) 19.00 19.00 20.00 22.00 19.00 23.00 25.00 Attendance %) Name Albert, C. Allison, J. Amanda, B Anderson, M Ben, J Benedict, M Elizabeth, K Gender SAT Score 1,205 1,090 1,300 1,230 1,124...
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