What marked the end of the Russian monarchy?

History

2 answers:

marta [7]3 years ago

7 0

D the Execution of the Tsar and his family

Zina [86]3 years ago

6 0

The ending of the monarchy in Russia was marked by the abdication of Tsar Nicholas II in March 1917. when the monarchy officially ceases to exist. This event took place during the Russian Revolutions, and was the consequence of the same, beginning in 1905, then Revolution in 1917. Soon after the abdication, the Romanov family was killed. According to the options offered the end of the Russian Monarchy is marked by the execution of the tsar and his family.

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An hourly wage is normally distributed with a mean of $6.75 and a standard deviation of $0.55. What is the probability that an e

monitta

Answer:

Option A. 81.5%

Explanation:

Population mean, $\mu = 6.75$

Standard deviation, $\sigma = 0.55$

The question is to find $p(5.65 < \bar{x} < 7.30)$

The z value is given by the formula:

$z = \frac{\bar{x} - \mu}{\sigma}$

z - value corresponding to the mean, $\bar{x} = 5.65$ :

$z_1 = \frac{5.65 - 6.75}{0.55}\\z_1 =-2.0$

z - value corresponding to the mean, $\bar{x} = 7.30$ :

$z_1 = \frac{7.30 - 6.75}{0.55}\\z_1 =1.0$

$p(5.65\leq \bar{x} \leq 7.30) = p(-2.0 \leq z \leq 1.0)\\p(-2.0 \leq z \leq 1.0) = p(z\leq 1) - p(z\leq -2)\\ p(-2.0 \leq z \leq 1.0) = 0.84134 - 0.02275\\p(-2.0 \leq z \leq 1.0) = 0.81859 \\p(-2.0 \leq z \leq 1.0) = 0.82$