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Hunter-Best [27]
3 years ago
13

A random sample of 10 subjects have weights with a standard deviation of 11.0482 kg. What is the variance of their​ weights? Be

sure to include the appropriate units with the result.
Mathematics
1 answer:
beks73 [17]3 years ago
5 0

Answer:

122.0627kg

Step-by-step explanation:

The standard deviation is the square root of the variance.

That means:

\sigma =  \sqrt{variance}

From the question, the standard deviation of the weights of the 10 random subjects is 11.0482kg

We substitute to get:

11.0482 =  \sqrt{variance}

We square both sides to get:

11.0482^{2} = variance

122.0627 = variance

Therefore the variance is 122.0627kg

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5 0
2 years ago
You invested $1,200 in a mutual fund. Your account now has a value of $1,333. what was your gain?
OleMash [197]
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=> 1333 - 1200 = 133 dollars was added to your account
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7 0
3 years ago
Read 2 more answers
Rosa works due north of home. Her husband Juan works due east. They leave for work at the same time. By the time Rosa is 7 miles
polet [3.4K]
<span>This is a right triangle problem. c^2 = a^2 + b^2
Let b = 7 mi (Rosa's distance from home)
Let a = the east leg (Juan's distance from home
(a+1) = c (hypotenuse, distance between them)

(a+1)^2 = a^2 + 7^2

FOIL (a+1)(a+1)
a^2 + 2a + 1 = a^2 + 49

Combine like terms
a^2 - a^2 + 2a = 49 - 1
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a = 

<span>a = 24 mi, Juan's distance from home

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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8 0
2 years ago
A circle has a radius that is 4 centimeters long. If a central angle has a measure of 3 radians, what is the length of the arc t
kirill115 [55]
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As r = 4c

Then,

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But we have to know:

...<..> ...

Then,

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x ________ 3π


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x = (8π . 3π) / 2π

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4 0
3 years ago
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How do you solve this, r-4&lt;1
Romashka-Z-Leto [24]

Answer:

r <5

Step-by-step explanation:

r-4<1

Add 4 to each side

r-4+4<1+4

r <5

7 0
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