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Svetradugi [14.3K]
3 years ago
6

1OO points!!! 5O points each answer!! Brainliest too!

Mathematics
2 answers:
densk [106]3 years ago
7 0

Answer:

I think the other person answered but i can still explain, just comment if you want

Step-by-step explanation:

have a great day

Lelu [443]3 years ago
5 0

____________________________

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Help me pass . I’m depressed and school juss shot me in my back
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Answer:

5√3 X squared

Step-by-step explanation:

Individually work them out then put in back on the fraction and once you simplify it gives you the answer.

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It was estimated that 800 people would attend the play, but 752 actually attended. what is the percent error?
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Answer:

94 percent

Step-by-step explanation:

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The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The
zavuch27 [327]

The standard deviation of the frequency distribution is 5.54

<h3>How to determine standard deviation?</h3>

The table of values is given as:

x     f(x)

0-3 13

4-7  13

8-11 10

12-15 11

16-19 0

20-23 3

Rewrite the table by calculating the class midpoints:

x     f(x)

1.5 13

5.5  13

9.5 10

13.5 11

17.5 0

21.5 3

Start by calculating the mean using:

\bar x = \frac{\sum fx}{\sum f}

This gives

\bar x = \frac{1.5 * 13 + 5.5 * 13 + 9.5 * 10 + 13.5 * 11 + 17.5 * 0 + 21.5 * 3}{13 + 13 + 10 + 11 + 0 +3}

Evaluate

\bar x = 7.98

The standard deviation is then calculated as:

\sigma = \sqrt{\frac{\sum f(x - \bar x)^2}{\sum f }}

So, we have:

\sigma= \sqrt{\frac{13 * (1.5 - 7.98)^2 + 13  * (5.5 - 7.98)^2 + (9.5 - 7.98)^2 * 10 + (13.5 - 7.98)^2 * 11 + (17.5 - 7.98)^2 * 0 + (21.5 - 7.98)^2 * 3}{13 + 13 + 10 + 11 + 0 +3}}

Evaluate

\sigma= \sqrt{30.6496}

Solve

\sigma= 5.54

Hence, the standard deviation is 5.54

Read more about standard deviation at:

brainly.com/question/15858152

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A, P, M, S, W, Q

Step-by-step explanation:

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3 years ago
Test each statement below to see if it is reversible. If so, write it as a true biconditional. If not, write not reversible
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Here the reverse is true, therefore, the statement is true biconditional.

Statement: A rectangle is a four-sided figure with at least one right angle.
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