2 years ago

Help pleaseeeeeeeeeee

Mathematics

2 answers:

vovikov84 [41]2 years ago

7 0

Answer:

Step-by-step explanation:

aleksandr82 [10.1K]2 years ago

4 0

Answer:

km/hr

<em>Hope that helps! :)</em>

Step-by-step explanation:

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Step-by-step explanation:

Here, we want to write an algebraic expression to represent the situation

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Step-by-step explanation:

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The average college lecture hall (auditorium) can seat 60 students with a standard deviation of 21. Assume that a total of 60 le

fiasKO [112]

Answer:

The standard deviation of the sample mean is $\sigma _ {\= x } = 2.711$

Step-by-step explanation:

From the question we are told that

The mean is $\= x = 60$

The standard deviation is $\sigma = 21$

The sample size is $n = 60$

Generally the standard deviation of the sample mean is mathematically represented as

$\sigma _ {\= x } = \frac{\sigma }{\sqrt{n} }$

substituting values

$\sigma _ {\= x } = \frac{ 21 }{\sqrt{60} }$

$\sigma _ {\= x } = 2.711$

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3 years ago