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3 years ago

What is the standard deviation of the following data set rounded to the nearest tenth 3,17,18,15,12,21,9

2 answers:

6 0

Hey,
To find the Standard deviation of the data set, there are 4 steps:
<span>1. Work out the Mean (the simple average of the numbers)
2. Then for each number: subtract the Mean and square the result.
3. Then work out the mean of those squared differences.
4. T<span>ake the square root of that and we are done!

Here is your answer:
6.1

Is there a typo? I have checked my answer multiple times. Perhaps are you missing a number in the data set?

Cheers,
Izzy</span></span>

Alenkinab [10]3 years ago

4 0

I think that it is c or d but correct me if i am wrong

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I think the answer is 0,8

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3 years ago

GAMING In a video game, the user navigates a character across an unknown land using a map. On the map, the distance between the

soldi70 [24.7K]

The question is an illustration of scale drawing

The character have to travel 8.5 km in the game to visit all three destinations and return to their starting point

<h3>How to calculate the actual distance</h3>

The distance on the map are given as:

A =2 cm

B = 8 cm

C = 7 cm

The total distance on the map would be:

$Total =2cm + 8cm + 7cm$

$Total =17cm$

The actual distance between the store and the dungeon is 4 kilometers.

This means that:

$B' =4km$

So, we have:

$Scale = B : B'$

$Scale = 8cm : 4km'$

Represent the required actual distance with x.

So, we have:

$17cm : x = 8cm : 4km$

Express as fraction

$\frac{x}{17} = \frac 48$

Multiply both sides by 17

$x = \frac 48 * 17$

$x = 8.5$

Hence, the actual distance travelled is 8.5 km

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brainly.com/question/24579126

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2 years ago

(-4,6); slope = -3/4

yawa3891 [41]

Answer:

y-6=-3/4(x+4)

Step-by-step explanation:

y-y1=m(x-x1)

m=-3/4

y-6=-3/4(x-(-4))

y-6=-3/4(x+4)

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2 years ago

Please help I don’t understand

madam [21]

I don’t get it either

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2 years ago

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sammy [17]

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2 years ago