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Juliette [100K]
3 years ago
15

A store asked 250 of its customers whether or not they were satisfied with the service. The responses were also classified accor

ding to the gender of the customers. We want to study whether there is a relationship between satisfaction and gender.
A meaningful display of the data from this study would be:

a) side-by-side boxplots
b) a pie chart
c) a histogram
d) a scatterplot
e) a two-way table
Mathematics
1 answer:
anyanavicka [17]3 years ago
3 0

Answer:

Correct option: e) a two-way table.

Step-by-step explanation:

In this case the store wants to see whether there is a relationship between the satisfaction level of the customer and their gender.

In statistics when there is a need to analyze or derive a relation between two categorical variables one should use a two-way table.

Categorical variables are qualitative variables that take on specific values that are usually labels. For example, grades obtained in an exam, gender, etc.

In this case the two categorical variables are: Gender and Satisfaction level.

To study the relation between the gender of a customer and their satisfaction level use a two-way table.

 

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Donna sent her grandson a birthday present. The box weighed 0.875 kilograms and the present itself weighed 6,800 grams. a. What
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A) We know that the box weighed 0.875 kg, and the present weighed 6,800 g. However we need the gross weight of the package in kg, so we have to convert the present's weight to kg. There are 1000 grams in 1 kg, so we can divide the present's weight by 100 to find the weight in kg:

\frac{6,800}{1000} =6.8 kg

Now that we have converted to grams, let's add the weight to get the total gross weight:

0.875+6.8=7.675 kg

So the gross weight of the package is 7.675 kg.

b) Shipping costs 74 cents per kg, so in order to find the total cost of shipping for the package, let's multiply the weight of the package by the cost of shipping:

\frac{7.675kg}{1}* \frac{74 cents}{kg}=567.95 cents

However the cost of shipping has to be in dollars. There are 100 cents in one dollar, so we need to divide the amount of cents that shipping costs by 100 to get the total in dollars:

\frac{567.95cents}{100} =5.68dollars

Now we know that the total cost of shipping, in dollars, is equal to $5.68.
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3 years ago
"At most" and "No more than" are both clue words for...<br> a) <br> c)≤<br> d)≥
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Answer:

d) ≤

Step-by-step explanation:

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3 years ago
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ludmilkaskok [199]
Is this a true or false type of question
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3 years ago
Sarah had 8 guests at her birthday party. She cut her round cake into 12 equal slices. 8 of the slices were eaten. What is the a
Dvinal [7]

Answer:120°

Step-by-step explanation:

Given

cake is cut into 12 equal pieces

We know the top view of cake is similar to circle .

So, if a circle is divided into 12 equal parts then

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These 4 slices measure subtend equal angle at the center therefore

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3 years ago
The angle of elevation of the top of a pole as seen from a point 13 ft away from the base is double its angle of elevation as se
spayn [35]

The height of the pole above the level of the observer's eyes is 31.42 ft

Let the angle of elevation of the top of the pole from a point 47 ft away be α.

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Since the angle of elevation of a point 13 feet away is twice that from 47 ft away, we have that β = 2α.

If the height of the pole above the level of the observer's eye is h, we have that

tanβ = tan2α = h/13 and tanα = h/47

From trigonometric identities tan2α = 2tanα/(1 - tan²α)

Substituting the values of the variables into the equation, we have

tan2α = 2tanα/(1 - tan²α)

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Dividing through by h, we have

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Cross-multiplying, we have

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Taking square-root of both sides, we have

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Cross-multiplyng, we have

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h = √987

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The height of the pole above the level of the observer's eyes is 31.42 ft

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