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alisha [4.7K]
3 years ago
10

Using a graphical method to determine if a set of ungrouped raw data is normally distributed, that data would be normally distri

buted if:________.a. The plot of the data was curvilinear
b. The data was randomly distributed
c. The plot of the data was linear
d. The plot of the data was significantly different from zero
Mathematics
1 answer:
Vilka [71]3 years ago
6 0

Answer: c. The plot of the data was linear

Step-by-step explanation:

If a graphical approach is used to analyze a set of raw data group, if the data set is normally distributed it is linear that is it is (attached to each other), we can conclude that the data set is normally distributed because on the plotted graph the information appears linear.

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Explain why a graph that fails the vertical-line test does not represent a function. Be sure to use the definition of a function
ArbitrLikvidat [17]

Explanation:

A function is a relationship where any one x-value/input only has <u>one </u>corresponding y-value/output. (note: a y-value can have multiple x-values).

> This can be called "assigning one y-value to every x element".

The vertical line test places a line that would connect all y-values of an x-value (that is, if it were to have multiple y-values). If multiple points can be found along the vertical line, it is, therefore, by the definition of a function, not a function. (Because an x-value will have more than one y-value).

So, a graph that fails the vertical-line test does not represent a function because an x-value will correspond with more than one y-value.

hope this helps!!

4 0
2 years ago
F(x)=-x^2+x<br> f(x)=−x <br> Find f(−1)
STALIN [3.7K]

Answer:

<u>Step 1:  Set x to -1 in the first equation </u>

f(x) = -x^2 + x

f(-1) = -(-1)^2 + (-1)

f(-1) = -(1) - 1

f(-1) = -1 - 1

f(-1) = -2

<u>Step 2:  Set x to -1 in the second equation </u>

f(x) = -x

f(-1) = -(-1)

f(-1) = 1

5 0
3 years ago
N 1846 the depth of the river was 5 feet deep. In 1847 it dropped to 3.2 feet. This year, 1848, it rose to 6.6 feet. Find the pe
gayaneshka [121]

Answer:

40.4%

Step-by-step explanation:

Given data

Initial depth= 5feet

Final depth= 5-3.2+6.6= 8.4feet

Hence the percent change

% change= FInal-initial/final*100

% change= 8.4-5/8.4*100

% change= 3.4/8.4*100

% change= 0.404*100

% change=40.4%

Hence the percent change is 40.4%

5 0
3 years ago
A right triangle has a length of 30 and a side with a length of 18. A side with a length of 24 is opposite angle theta. What sta
tekilochka [14]

Answer:

\text{A. }\cos \theta = \frac{3}{5}

Step-by-step explanation:

See attached file for complete work.

Download pdf
7 0
3 years ago
Angle Z is congruent to which angle in NWK
kotegsom [21]

Answer:

Angle K

Step-by-step explanation:

Angle Z has the angle marking with one blue curve.

The one blue curve is also found on angle K in triangle NWK.

Therefore, the two angles are congruent, meaning they are the same measure.

3 0
3 years ago
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