The following data represent the amount of time​ (in minutes) a random sample of eight students took to complete the online portion of an exam in a particular statistics course. Compute the​ mean, median, and mode time.

65.4​, 79.5​, 83.2​, 113.5​, 128.4​, 99.3​, 94.7​, 115.2

Respuesta :

Answer: Mean =   97.4

Median = 97

Mode = 0

Step-by-step explanation:

Here, the given data,

65.4​, 79.5​, 83.2​, 113.5​, 128.4​, 99.3​, 94.7​, 115.2

Thus, total observation = 8

Since, [tex]\text{Mean} = \frac{\text{ Sum of all observation}}{\text{ Number of the observations}}[/tex]

[tex]\text{Mean}=\frac{65.2+79.5+83.2+113.5+128.4+99.3+94.7+115.2}{8}[/tex]

[tex]\text{Mean} =97.4[/tex]

The arrangement of data in increasing order,

65.4​, 79.5​, 83.2​, 94.7​, 99.3​, 113.5​, 115.2, 128.4​

Therefore, [tex]\text{Median} = \text{ A number that between 94.7 and 99.3}[/tex]

⇒ [tex]\text{ Median} = \frac{94.7+99.3}{2}[/tex]

⇒ [tex]\text{ Median} = 97[/tex]

Since, there is no repeated observation in the given data,

Given data has no mode.