Recorremos un camino de 1km a una velocidad de 6 km/h. ¿Cuanto tardamos en llegar al destino?

Mathematics

1 answer:

Ksenya-84 [330]2 years ago

5 0

Answer:

10 minutos

Step-by-step explanation:

La operación a efectuar es:

1km / (6km/h)

= 1/6 hora

expresándolo en minutos es:

1 hora = 60 minutos

1/6 hora = 60*1/6 = 10 minutos

Tardaremos:

10 minutos

en llegar al destino

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A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are listed below. The values

nika2105 [10]

Answer:

For systolic pressure data:

$\bar X =127.2\\\\S=17.91668\\\\CV=\frac{17.91668}{127.2}=0.14085$

For diastolic pressure data:

$\bar X =73.5\\\\S=12.54\\\\CV=\frac{73.5}{12.54}=0.17061$

Systolic pressure is slightly less variable, among individuals in the sample, than diastolic pressure.

Step-by-step explanation:

The coefficient of variation is defined as the percentage relative variation of a set of data with respect to its average. And it is calculated like this:

$CV=\frac{\bar X}{S}$

$S =\sqrt{\frac{1}{n-1} \sum_{i=1}^n (x_i-\bar{x})^2$

$\bar X={\frac{1}{n} \sum_{i=1}^n x_i$

For systolic pressure data:

$\bar X =127.2\\\\S=17.91668\\\\CV=\frac{17.91668}{127.2}=0.14085$

For diastolic pressure data:

$\bar X =73.5\\\\S=12.54\\\\CV=\frac{12.54}{73.5}=0.17061$

It is observed that the systolic pressure shows greater standard deviation but less coefficient of variation. This is due to the greater magnitude of its measurement scale.

Systolic pressure is slightly less variable, among individuals in the sample, than diastolic pressure.

7 0

2 years ago

What is the answer of 11 6/9 - 4 4/9

IrinaK [193]

Answer:

$7 \frac{2}{9}$