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KIM [24]
3 years ago
8

What can be said about a set of data with a standard deviation of​ 0? ​(This is a reading assessment question. Be certain of you

r answer because you only get one attempt on this​ question.) Choose the correct answer below. A. All the observations are the same value. B. All the observations are 0. C. For every positive​ value, there is a corresponding negative value​ (as in 4 and −​4; 6 and −​6).
Mathematics
1 answer:
Fittoniya [83]3 years ago
7 0

Answer:

A.) All the observations are the same value

Step-by-step explanation:

One of the statistical measures used to determine the spread or variability of a dataset is the variance or standard deviation. The standard deviation determines how a set of value varies about the mean value.

Mathematically,

Variability or spread = mean + number of standard deviations

Hence, a standard deviation of 0 ; means they there is no variability in the dataset. Hence, a standard deviation of 0 means all observations are of the same value.

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Day 6: Textbook Page 321 Problem 9 When Esteban looks at the puddle, he sees a reflection of the top of the cactus. How tall is
Novay_Z [31]

The given figure can be drawn as,

From the figure,

\tan \theta=\frac{opposite\text{ side}}{\text{adjacent side}}

\begin{gathered} \tan \theta=\frac{DE}{EC} \\ \tan \theta=\frac{1.5}{2.5} \\ \tan \theta=0.6 \end{gathered}

Since angle of incidence will be equal to angle of reflection, \begin{gathered} \text{tan}Therefore, the height of cactus is 6 m.

6 0
8 months ago
Parker was able to pay for 60% of his college tuition with his scholarship. The remaining $10,000 he paid for with a student loa
irga5000 [103]

Answer: The cost of Parker's tuition was $25000

Step-by-step explanation:

Let x represent the cost of Parker's tuition.

Parker was able to pay for 60% of his college tuition with his scholarship. This means that the amount of his college tuition that he was able to pay is 60/100 × x = 0.6×x = 0.6x

The remaining $10,000 he paid for with a student loan. The amount remaining is x - 0.6x = 0.4x. This means that

0.4x was paid with a student loan. Therefore,

0.4x = 10000

x = 10000/0.4 = $25000

5 0
3 years ago
Read 2 more answers
What is the x <br> 0.02+0.7=0.8-0.3x
pav-90 [236]
X = 4/15 or 0.26

First add the numbers on the left side of the equation.

0.72 = 0.8 - 0.3x

Then move the variable to the left as well.

0.3x + 0.72 = 0.8

Move the constant to the right by subtracting.

0.3x = 0.8 - 0.72

Subtract the numbers

0.3x = 0.08

Divide both sides by 0.3.

And that should yield your answer.

Hope this helps. ^^

6 0
2 years ago
A hot-air balloon is moving on a bearing of 2450 at 31mph. A wind is blowing with the bearing of 2600 at 23mph. Find the compone
Alborosie

Answer:

V=(54i) \ mph

Step-by-step explanation:

According to the problem, the hot-air ballon and the wind are movind in the same direction, which means the component form of the velocity of the ballon is the net vector between both velocities.

Basically, the net velocity is

v_{net}=31 + 23 = 54 mph

Because both velocities have the same direction.

Assuming they are moving in a horizontal direction, the component of this velocity is

V=(54i) \ mph

4 0
3 years ago
Read 2 more answers
Help me please give u lots of points and crown
fredd [130]

Answer:

multiplication ( 36) use vertical column method

Step-by-step explanation:

253×41

3 0
2 years ago
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