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fredd [130]
2 years ago
14

A television programme starts at nine thirty-five and ends at ten o’clock. How long did the programme last?

Mathematics
2 answers:
anygoal [31]2 years ago
5 0

Answer:

25 minutes I believe. . .

neonofarm [45]2 years ago
4 0

Answer:

70 minutes which is 1 hour and 10 minutes

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Using the Empirical Rule and the Central Limit Theorem, we have that:

  • About 68% of the sample mean fall with in the intervals $1.64 and $1.82.
  • About 99.7% of the sample mean fall with in the intervals $1.46 and $2.

<h3>What does the Empirical Rule state?</h3>

It states that, for a normally distributed random variable:

  • Approximately 68% of the measures are within 1 standard deviation of the mean.
  • Approximately 95% of the measures are within 2 standard deviations of  the mean.
  • Approximately 99.7% of the measures are within 3 standard deviations of the mean.

<h3>What does the Central Limit Theorem state?</h3>

By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation s = \frac{\sigma}{\sqrt{n}}.

In this problem, the standard deviation of the distribution of sample means is:

s = \frac{0.657}{\sqrt{50}} = 0.09

68% of the means are within 1 standard deviation of the mean, hence the bounds are:

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99.7% of the means are within 3 standard deviations of the mean, hence the bounds are:

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More can be learned about the Empirical Rule at brainly.com/question/24537145

#SPJ1

5 0
3 years ago
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