Solusi - Probabilitas kumulatif dalam distribusi normal standar

Cumulative probability

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1. Find the cumulative probability of the z-scores values up to $- 4$

More than $99, 9 %$ of the time, data with a standard normal distribution lies within plus or minus $3, 9$ standard deviations of the mean.

The cumulative probability of the values up to $- 4$ is $0$ .
$p (m < - 4) = 0$
The cumulative probability that $m < - 4$ is $0 %$

2. Find the cumulative probability of the z-scores values up to $- 8$

Más del $99, 9 %$ del tiempo, los datos con una distribución normal estándar se encuentran dentro de más o menos $3, 9$ desviaciones estándar de la media.

La probabilidad acumulativa de los valores hasta $- 8$ es $0$ .
$p (m < - 8) = 0$
La probabilidad acumulativa de que $m < - 8$ sea $0 %$

3. Calculate the cumulative probability between -4 and -8

To find the cumulative probability of the area between the two z-scores, subtract the smaller cumulative probability (everything to the left of $- 8$ ) from the larger cumulative probability (everything to the left of $- 4$ ):

$0 - 0 = 0$
$p (- 8 < m < - 4) = 0$
The cumulative probability that $- 8 < m < - 4$ is $0 %$

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Normal and standard normal distributions

Solusi - Probabilitas kumulatif dalam distribusi normal standar

Penjelasan langkah demi langkah

1. Find the cumulative probability of the z-scores values up to −4

2. Find the cumulative probability of the z-scores values up to −8

3. Calculate the cumulative probability between -4 and -8

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Latihan Terkait Terbaru Dipecahkan

1. Find the cumulative probability of the z-scores values up to $- 4$

2. Find the cumulative probability of the z-scores values up to $- 8$