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beks73
11 days ago
11

5 pies were shared equally among 6 girls. What fraction of a pie did each girl receive? Explain.

Mathematics
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6. Triangle ABC is rotated 90 degrees counterclockwise and then translated 3 units up to form
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Given: Triangle ABC is rotated 90 degrees counterclockwise and then translated vertically by 3 units to form triangle A'B'C'. To determine: The transformation rule necessary to map each point (x,y) on Triangle ABC to its equivalent point on Triangle A'B'C'. Solution: For a figure that undergoes a 90-degree counterclockwise rotation, the transformation will be defined as: To translate a figure upward by 3 units, the appropriate transformation will be applied afterwards. Hence, when triangle ABC experiences a rotation of 90 degrees counterclockwise followed by a translation of 3 units upward to create triangle A'B'C', the transformation rule will be established accordingly.
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1 month ago
You are given a bag of coins with varying biases.the probability of heads is a random variable sample from uniform distribution
Inessa [12570]

Answer:


Step-by-step explanation:




Imagine having a collection of n biased coins, and you draw m<n of them without replacement, subsequently measuring each coin i for its parameter pi∈[0,1], indicating that each coin behaves as Bernoulli(pi). Now, I am curious to determine the most probable pm+1 for the next coin I choose. The only method I can think of is calculating the average of the parameters of the m coins sampled thus far, which can be expressed as: p^m+1=p1+…+pmm.

4 0
2 months ago
Alan and Judith begin withdrawing money from their accounts at the same time.
Svet_ta [12734]

Response:

Step-by-step breakdown:

N

4 0
2 months ago
In a study of exercise, a large group of male runners walk on a treadmill for six minutes. Their heart rates in beats per minute
Leona [12618]

Answer:

a) 1.88% de los corredores tienen frecuencias cardíacas superiores a 130.

b) 50% de los no corredores tienen frecuencias cardíacas superiores a 130.

Explicación paso a paso:

Los problemas relacionados con muestras distribuidas normalmente pueden resolverse utilizando la fórmula del puntaje z.

En un conjunto con media \mu y desviación estándar \sigma, el puntaje z asociado a una medida X se presenta a través de:

Z = \frac{X - \mu}{\sigma}

El puntaje z indica cuántas desviaciones estándar está la medida respecto a la media. Tras determinar el puntaje z, consultamos la tabla de puntajes z y localizamos el valor p relacionado con este puntaje. Este valor p representa la probabilidad de que el valor de la medida sea menor que X, es decir, el percentil de X. Al restar 1 del valor p, obtenemos la probabilidad de que el valor de la medida sea mayor que X.

(a) ¿Qué porcentaje de los corredores tienen frecuencias cardíacas superiores a 130?

En un estudio sobre ejercicio, un gran grupo de corredores masculinos camina en una caminadora durante seis minutos. Sus frecuencias cardíacas expresadas en latidos por minuto al final varían entre ellos conforme a la distribución N(104,12.5). Esto implica que \mu = 104, \sigma = 12.5.

Este porcentaje es 1 menos el valor p cuando X = 130.

Z = \frac{X - \mu}{\sigma}

Z = \frac{130 - 104}{12.5}

Z = 2.08

Z = 2.08 tiene un valor p de 0.9812.

Esto significa que 1-0.9812 = 0.0188 = 1.88% de los corredores tienen frecuencias cardíacas superiores a 130.

(b) ¿Qué porcentaje de los no corredores tienen frecuencias cardíacas superiores a 130?

Las frecuencias cardíacas para hombres no corredores después del mismo ejercicio mantienen la distribución N(130, 17). Esto implica que \mu = 130, \sigma = 17.

Este porcentaje es 1 menos el valor p cuando X = 130.

Z = \frac{X - \mu}{\sigma}

Z = \frac{130 - 130}{17}

Z = 0.00

Z = 0.00 tiene un valor p de 0.5000.

Esto significa que 1-0.50 = 0.50 = 50% de los no corredores tienen frecuencias cardíacas superiores a 130.

4 0
2 months ago
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