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irina [24]
3 years ago
12

A web page design firm has two designs for an online hardware store. To determine which is the more effective​ design, the firm

uses one page from 1 : 00 PM until 6 : 00 PM and a second page from 6 : 00 PM until 11 : 00 PM. For each​ visit, the firm records the visitor's rating on the layout and the number of items viewed. Complete parts​ (a) through​ (c) below. ​(a) What is the explanatory variable in this​ study? Is it qualitative or​ quantitative? A. The explanatory variable is the number of items viewed. This explanatory variable is quantitative. B. The explanatory variable is the web page design. The explanatory variable is qualitative. C. The explanatory variable is the time of day. This explanatory variable is qualitative.
Mathematics
1 answer:
elena55 [62]3 years ago
5 0

Answer:

A. The explanatory variable is the number of items viewed. This explanatory variable is quantitative.

Step-by-step explanation:

The variable that we can change is called the Explanatory Variable.

The Response variable depends upon the explanatory variable, as we change the value of the explanatory variable the value of the response variable is also get changed.

When the data is in the form of numeric, it is called quantitative.

When the data is not in the numeric form, it is called qualitative.

Here, we have to determine which web page design is better and it depends on the number of the item viewed by a visitor to that site.

Thus, the Explanatory variable is the "number of items viewed".

and the number of items viewed is numeric data, so it is quantitative.

Hence, option (A) is correct.

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The baseball coach is 70 inches tall. How tall is the child?
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The child is <u>59.4 inches tall</u>, assuming the length from the coach's shoulder to his head cap is approximately 10 inches.

<h3>What is Heigth?</h3>

Height refers to the vertical distance between the top and bottom of something.

Height measures the length of some objects or persons vertically to determine whether it is high or low, according to some ascertained criteria.

<h3>Data and Calculations:</h3>

Baseball coach's height = 70 inches

Coach's shoulder to head = 10.6 inches

Height of the child standing slightly below the coach's shoulder = 59.4 inches (70 - 10.6)

Thus, the child standing slightly below the coach's shoulder is 59.4 inches tall.

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<h3>Question Completion:</h3>

Assume that the height of the coach from his shoulder to the head is 10.6 inches.

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<u>Answer:</u>

Triangle HMK≅Triangle ILJ

<u>Explanation:</u>

Two triangles are congruent if they have the same sides and the same size. This means they have the same shape and size, regardless of their position or orientation.


If we want to verify if two triangles are congruent, they must fulfill some conditions:


a) Two triangles are congruent if their three sides are respectively equal



b) Two triangles are congruent if two of their sides and the angle between them are respectively of equal length.



c) Two triangles are congruent if they have a congruent side and the angles with vertex at the ends of that side are also congruent.  


d) Two triangles are congruent if they have two sides respectively congruent and the angles opposite the greater of the sides are also congruent



According to these criteria, Triangle HMK≅Triangle ILJ



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