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2 years ago

Find standard deviation 22,25 30 35 40 45 48

Mathematics

1 answer:

poizon [28]2 years ago

8 0

Answer:

To calculate the standard deviation of those numbers:

Work out the Mean (the simple average of the numbers)

Then for each number: subtract the Mean and square the result.

Then work out the mean of those squared differences.

Take the square root of that and we are done!

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solve the following compound inequality graph the solution 7x = 35 ? please help and also show ur work on how u got it

erma4kov [3.2K]

$7x = 35 \\ \frac{7x}{7 } = \frac{35}{7} \\ x = 5$

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2 years ago

A boy weighs 31.5 kilograms. how much does he weigh in pounds? use the following conversion: 1 kilogram is 2.2 pounds

mario62 [17]

If 1 kilogram equals 2.2 pounds, how many pounds will 31.5 kilograms equal?
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2 years ago

Read 2 more answers

Please help asap!

allochka39001 [22]

Answer:

See below

Step-by-step explanation:

The solution choices all agree that x = 1±√2. The second equation tells you ...

y = ±2√(x+2)

so the sign of the √2 term in x is the same as the sign of the √2 term in y. The answer choices circled in red are the ones that meet this requirement.

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2 years ago

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Travka [436]

Answer:

first pic: 22

2nd pic: 31

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2 years ago

6. Ed drives from Jefferson to Holden, a distance of 250 miles. He then travels on to

andreev551 [17]

Answer:

The constant speed with Ed is travelling is 60 mile per hour

Step-by-step explanation:

Given as :

The distance cover to travel from Jefferson to Holden is (D1) 250 miles

The distance cover to travel from Holden to Paxton is (D2) 50 miles

Total time taken to complete entire journey = T = 5 hours

Let The constant speed of Ed = S mph

Time = $\frac{Distance}{Speed}$

Or, Time = $\frac{D1}{S}$ + $\frac{D2}{S}$

Or, 5 hour = $\frac{250}{S}$ + $\frac{50}{S}$

Or, 5 × S = 250 + 50

So, 5 × S = 300

∴ S = $\frac{300}{5}$

I.e S = 60 mph

Hence , The constant speed with Ed is travelling is 60 mile per hour Answer

6 0

2 years ago

Find standard deviation 22,25 30 35 40 45 48​

Find standard deviation 22,25 30 35 40 45 48