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borishaifa [10]
3 years ago
13

If the variance of the data values in a population in 256, what is the standard deviation of the data set values

Mathematics
1 answer:
Alex787 [66]3 years ago
6 0
Standard deviation σ is the square root of the variance \sigma^{2}. Therefore
 \sigma^{2}=256
 \sigma=\sqrt{256}=16
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In math class, James, Hadley, and Gwen were challenged to go stand on the field in a random location and find the distance betwe
o-na [289]

The interior angles of the triangle of 61°, 73°, and 46°, and the distance from James to Hadley of 15 meters gives;

  • Gwen to Hadley ≈ 18.24 meters

  • Gwen to James ≈ 19.94 meters

<h3>How can the distances between the students be found?</h3>

The given angles are;

At James's location; 61°

At Hadley's location; 73°

At Gwen's location; 46°

The distance between James and Hadley = 15 meters

The angle facing the distance between James and Hadley is the angle at Gwen, 46°

The angle facing the distance between Gwen and James is the angle at Hadley, 73°

The angle facing the distance between Gwen and Hadley is the angle at James, 61°

The angle that faces the 15 meter length is the angle at Gwen, which is 46°

By the rule of sines, the distance from Gwen to Hadley is therefore;

\frac{15}{sin( 46 ^  \circ)}  =  \frac{Gwen  \: to \:  Hadley}{sin( 61 ^  \circ)}

Which gives;

Gwen  \: to \:  Hadley= \frac{15 \times sin( 61 ^  \circ) }{sin( 46 ^  \circ)} \approx 18.24

  • Gwen to Hadley ≈ 18.24 meters

Similarly, we have;

\frac{15}{sin( 46 ^  \circ}  =  \frac{Gwen  \: to \:  James}{sin( 73 ^  \circ)}

Therefore;

Gwen  \: to \:  James = \frac{15 \times sin( 73 ^  \circ) }{sin(46 ^  \circ)}  \approx 19.94

  • Gwen to James ≈ 19.94 meters

Learn more about the rule of sines here:

brainly.com/question/4372174

#SPJ1

4 0
2 years ago
Which one of these is not a step used when constructing an inscribed equilateral triangle using technology? (5 points)
Nady [450]

Answer:

again i can not see the given point

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Answer the picture below.
pav-90 [236]

Answer:

The distance between point M and point L is 8

Step-by-step explanation:

The given points on the coordinate are M = (- 2, 4) and L = (4, - 1)

The formula for determining the distance between two points is expressed as

d = √(x2 - x1)^2 + (y2 - y1)^2

Where

y2 = final value of y = - 1

y1 = initial value of y = 4

x2 = final value of x = 4

x1 = initial value of x = - 2

Therefore,

d = √(4 - - 2)^2 + (- 1 - 4)^2

d = √6^2 + (-5)^2

d = √36 + 25

d = √61 = 8

3 0
3 years ago
Sheryl's mean average on eight exams is 83.750. Find the sum of her scores.
schepotkina [342]
The answer is <span>B. 670 
</span>
The mean average (X) is sum (s) of the values divided by the number of values n:
X = s / n

X = 83.750
n = 8
s = ?

s = X * n
s = 83.750 * 8 = 670
6 0
3 years ago
Anica says that she can rewrite ANY subtraction problem as an addition problem. Is she correct? Explain how you know!
Mekhanik [1.2K]
Yeah i think so because
5-2=3
3+2=3
?

70-20=50
50+20=70
idek
3 0
3 years ago
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