Tipo de laboratorio de Estadística
Enviado por Jennigomez22 • 8 de Septiembre de 2017 • Informes • 324 Palabras (2 Páginas) • 143 Visitas
1. A sample of 100 students of an engineering program university, showed their preferences regarding the creation of a new laboratory in a survey for the student newspaper. Display data graphically using:
- A column chart
- A bar graph
- A pie chart
Tipo de laboratorio | Número de alumnos |
Estadística | 25 |
Control de calidad | 10 |
Neumática | 15 |
Hidráulica | 20 |
Simulación | 30 |
Solution
- A column chart
[pic 1]
- A bar graph
[pic 2]
- A pie chart
[pic 3]
2. From the following data, create the corresponding frequency table and graph:
- A histogram
- A frequency polygon
- A OGIVE
6,42 | 66,49 | 72,71 |
92,64 | 49,55 | 37,33 |
64,86 | 9,8 | 36,33 |
14,97 | 42,92 | 19,6 |
13,22 | 5,32 | 85,45 |
66,85 | 77,37 | 93,43 |
Solution
- A histogram
[pic 4]
- A frequency polygon
[pic 5]
- A OGIVE
[pic 6]
3. From the graph of warhead, answer the following questions (size the sample is 500):
[pic 7]
- What amount of data accumulated to 260.5 there?
- Serves this type of graph to show the absolute frequency (f)?
- Design respective frequency table
Solution
- What amount of data accumulated to 260.5 there?
Hay un 50 % acumulado de datos osea que hay 250 datos
- Serves this type of graph to show the absolute frequency (f)?
No la grafica de ojivas solo muestra frecuencias acumaladas, pero al hacer artilujios matemáticos se puede obtener para el análisis
- Design respective frequency table
Lm | Ls | f | F | h | H | Mc |
100,5 | 140,5 | 50 | 50 | 10% | 10% | 120,5 |
140,5 | 180,5 | 75 | 125 | 15% | 25% | 160,5 |
180,5 | 220,5 | 75 | 200 | 15% | 40% | 200,5 |
220,5 | 260,5 | 50 | 250 | 10% | 50% | 240,5 |
260,5 | 300,5 | 125 | 375 | 25% | 75% | 280,5 |
300,5 | 340,5 | 50 | 425 | 10% | 85% | 320,5 |
340,5 | 380,5 | 75 | 500 | 15% | 100% | 360,5 |
500 | 1 |
4. Create a frequency table containing seven class intervals for the following data. Build the respective histogram.
31,2 | 44,3 | 31,8 |
19,0 | 59,9 | 87,9 |
66,1 | 5,4 | 47,9 |
96,6 | 36,5 | 74,0 |
42,7 | 10,6 | 56,0 |
87,7 | 11,7 | 30,1 |
5,3 | 11,7 | 31,4 |
51,2 | 67,0 | 46,8 |
60,7 | 29,6 | 55,6 |
67,0 | 32,1 | 82,2 |
81,2 | 75,5 | 91,0 |
40,4 | 42,4 | 31,8 |
26,6 | 70,1 | 30,4 |
6,4 | 19,1 | 77,6 |
57,3 | 62,1 | 40,9 |
Solution
No | Lm | Ls | f | F | h | H | Mc |
1 | 5,3 | 19,4 | 8 | 8 | 18% | 18% | 12,35 |
2 | 19,4 | 33,4 | 9 | 17 | 20% | 38% | 26,4 |
3 | 33,4 | 47,4 | 7 | 24 | 16% | 53% | 40,4 |
4 | 47,4 | 61,4 | 7 | 31 | 16% | 69% | 54,4 |
5 | 61,4 | 75,4 | 6 | 37 | 13% | 82% | 68,4 |
6 | 75,4 | 89,4 | 6 | 43 | 13% | 96% | 82,4 |
7 | 89,4 | 103,3 | 2 | 45 | 4% | 100% | 96,35 |
Total | 45 | 100% |
[pic 8]
5. The table below gives the monthly river flows Magdalena observed during the months of April and May, from 1988-2005 (The unit of measurement is not needed). You want to sort the data and make the following analysis:
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