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likoan [24]
4 years ago
5

True or false: the standard deviation is the square root of the variance.

Mathematics
1 answer:
Vilka [71]4 years ago
6 0
Why not look up "standard deviation" yourself, to be sure?  But yes, the std. dev. is the sqrt of the variance.
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Solve 2(x + 1) + 4 = 8.
Dennis_Churaev [7]
2X+2+4=8
2X+6=8
    -6   -6 
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3 0
3 years ago
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A triangle has side lengths of 24 in., 32 in., and 40 in. Is the triangle acute, obtuse, or right? A) right. B) obtuse. C) acute
Feliz [49]
24,  32 ,  40.           Divide through by 8

3,    4,    5,            

The 3 , 4, 5 reminds of the Pythagorean triple, which is a right angled triangle.

So a triangle with sides 24, 32, 40 is a right angled triangle.

Option A.  
8 0
3 years ago
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A warehouse distributor of carpet keeps 6,000 yards of deluxe shag carpet in stock during a month. The average demand for carpet
Bond [772]

Answer:

The probability that a customer’s order will not be met during a month is 1.67.

Step-by-step explanation:

Given : A warehouse distributor of carpet keeps 6,000 yards of deluxe shag carpet in stock during a month. The average demand for carpet from the stores that purchase from the distributor is 4,500 yards per month, with a standard deviation of 900 yards.

To find : What is the probability that a customer’s order will not be met during a month?

Solution :

Average Mean \mu=4500

Sample Mean x=6000

Standard deviation \sigma=900

The formula is given by,

Z=\frac{x-\mu}{\sigma}

Substitute the value in the formula,

Z=\frac{6000-4500}{900}

Z=\frac{1500}{900}

Z=1.67

The probability that a customer’s order will not be met during a month is 1.67.

7 0
3 years ago
David is keeping track of the internal temperature of a chicken he is cooking. The table below
Nataly_w [17]

Using the average rate of change, it is found that the average rate is of:

(1) 2.1 °F per minute

<h3>What is the average rate of change of a function?</h3>

It is given by the <u>change in the output divided by the change in the input</u>.

In this problem:

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Hence, in 30 minutes, the temperature increased 63ºF, hence the rate is given by:

r = 63/30 = 2.1 °F per minute.

More can be learned about the average rate of change at brainly.com/question/24313700

7 0
2 years ago
Ben left a 20% tip for his later if he left $4.20 how much did his bill come before the tip
Nataly [62]

Answer: 21 dollars was his bill before the tip

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7 0
4 years ago
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