se tomaron los datos de un grupo de estudiantes que realizaron una inspección médica ,el promedio de sus estaturas es de 169,5 cm. sabiendo que exi Fi= 16950,la cantidad de estudiantes que se hizo inspección médica es ​

Responder:

100

Explicación:

Dado que la altura media = media = 169,5 cm

ΣxiFi = 16950

El número de estudiantes que acudieron a la inspección médica = número de observaciones (F)

Recuerde, la fórmula media:

Media (X) = ΣxiFi / ΣFi

Donde, F = frecuencia o número de observaciones

Por eso,

169,5 = 16950 / ΣFi

169,5 ΣFi = 16950

ΣFi = 16950 / 169.5

ΣFi = 100

Por tanto, número de personas que acudieron a una inspección médica = 100

4) read the following excerpt. cognitive psychology has been widely developed, not only in brazil, but also in the world. it studies human intellectual capacities, analyzing the ways in which people solve mental tasks, and construct models for understanding such processes, understood from the information processing paradigm. this occurs through basic and superior cognitive processes. is one of the basic cognitive processes, considered the gateway to the stimuli that will be processed cognitively. through it we can extract meanings from the external environment, either through vision or through hearing. check the alternative that fits the gap correctly. select an alternative: a) perception. b) attention. c) memory. d) consciousness. e) intelligence.