TAREA No.2 PARA HACER EN CASA
1. De un grupo de personas 25 están enfermas y 45 están sanos. Calcular la Razón, Índice, Proporción y porcentajes de los enfermo, respecto a los sanos.
2. Un boxeador tiene 15 peleas ganadas, 3 empatas y 5 perdidas. Calcular la Razón, Índice de triunfos a perdidas; también calcular la Proporción y porcentajes de triunfos sobre todas su peleas.
3. El libro de estadística subió de 30 Bs a 45 Bs, calcular su porcentaje de crecimiento. El libro de Antropología bajo de 40 Bs a 30 Bs, calcular el porcentaje de decrecimiento.
4. En una reunión de 120 exalumnos de una promoción, se detecta que el índice de casados es 2/3 calcular el número de casados.
5. En una oficina trabajan 18 profesionales, haciendo un porcentaje de 20%. y los 80% restantes son técnicos. Calcular el número del personal de esa oficina.
6. Sobre una población de 10.000.000 de habitantes, se sabe que 2400 están infectados de VIH, calcular la tasa de incidencia de esa enfermedad.
7. Sobre una población de 16.000.000 habitantes, se registraron 4.800 intentos anuales de suicidio, calcular la tasa de suicidios.
8. El Jefe de control de calidad de una planta industrial contó en la producción semanal 25000 piezas buenas y 1200 defectuosas. Calcular la Razón, Indice, Proporción y Porcentaje de piezas buenas sobre las defectuosas.
9. La población del Dpto. de Potosí, en junio de 1990, fue de aproximadamente 400.000 habitantes. Durante ese mes nacieron 400 niños. Determine la tasa anual de nacimientos por cada 1000 habitantes.

the results from a pre-test for students for the year 2000 and the year 2010 are illustrated in the box plot. what do these results tell us about how students performed on the 29 question pre-test for the two years?

if we compare only the lowest and highest scores between the two years, we might conclude that the students in 2010 did better than the students in 2010. this conclusion seems to follow since the lowest score of 8 in 2010 is greater in value than the lowest score of 6 in 2000. also, the highest score of 28 in 2010 is greater in value than the highest score of 27 in 2000.

but the box portion of the illustration gives us more detailed information. the middle bar in each box shows us that the median score of 20 in 2000 is greater in value than the median score of 17 in 2010. further, we note that the box and whiskers divide the illustration into four pieces. each of these four pieces represents the same portion of students. so, the upper half of the students in 2000 scored in the same score range as the upper one-fourth of the students in 2010, see the illustration at a score of 20.

by considering the upper one-fourth, upper half, and upper three-fourths instead of just the lowest and highest scores, we would conclude that the students as a whole did much better in 2000 than in 2010. we would conclude that as a whole the students in 2010 are less prepared than the students in 2000.

in this section, we discuss box-and-whisker plots and the five key values used in constructing a box-and-whisker plot. the key values are called a five-number summary, which consists of the minimum, first quartile, median, third quartile, and maximum.

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

i dont understand

step-by-step explanation:

e. hinduismt religion first emerged on the indian subcontent