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DedPeter [7]
3 years ago
8

Shortly before the 1932 presidential election, a national magazine conducted a telephone survey of voters. Based on the results

of the survey, the magazine predicted that Herbert Hoover (Republican) would beat Franklin Roosevelt (Democrat) by a landslide. In fact, exactly the opposite happened. The trouble with the survey was that in the Depression era, only the rich could afford phones. Plus, wealthy people were more likely to vote Republican than Democrat. This is a classic example of an error in which phase of inferential statistics?
a. data gathering
b. data organisation
c. probability-based inference
d. data analysis
Mathematics
2 answers:
Alisiya [41]3 years ago
6 0
Data Gathering would be the correct answer ... 

REY [17]3 years ago
3 0

A. Data gathering is the answer.

Explanation:

Data gathering is a way of collecting information, where information is gathered in a systematic way and the surveyed persons are asked questions related to the research. Then the results are studied and an outcome is estimated. Here, only a few percent of the total population were asked about the research. A major voting population were not even considered here. Hence, it was a fault in gathering data.

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On a trip to a lake, Kerrie and Shelly rode their bicycles four more than three times as many miles in the afternoon as in the m
Natalija [7]

Answer:

27 miles in the morning and 85 miles in the afternoon.

Explanation:

Let m be the number of miles they rode in the morning.  They rode 4 more than 3 times this many in the afternoon; this gives us the expression

3m+4

to represent the miles ridden in the afternoon.

Together they rode 112 miles; this means we add the morning miles, m, to the afternoon miles, 3m+4, and get 112:

m+3m+4 = 112

Combine like terms:

4m+4 = 112

Subtract 4 from each side:

4m+4-4= 112-4

4m = 108

Divide both sides by 4:

4m/4 = 108/4

m = 27

They rode 27 miles in the morning.

That means in the afternoon, they rode

3m+4 = 3(27)+4 = 81+4 = 85 miles.

5 0
3 years ago
Read 2 more answers
A group spends $277.50 to rent a total of 15 tubes. How many of each type of tube does the group rent?
tensa zangetsu [6.8K]

The amount spent on each tube is $18.5

The total amount spent to rent 15 tubes by the group is $277.50.

Since they did not specify in the question the types of tubes they rented, we cannot determine each types of tubes that the group rented but we can determine the amount spent on each tube provided that they are all the same types.

∴

if 15 tubes = $277.50

1 tube = $x

By cross multiplying:

\mathbf {\$(x) = \dfrac{ \$277.50 \times 1 \ tube }{15 \ tube}}

\mathbf {(x) = \$18.5}

Therefore, we can conclude that the amount spent on each tube is $18.5

Learn more about arithmetic operations here:

brainly.com/question/15385899?referrer=searchResults

4 0
3 years ago
Suppose you are asked to find the area of a rectangle that is 2.1-cm wide by 5.6-cm long. Your calculator answer would be 11.76
yKpoI14uk [10]

Answer:

12 cm²

Step-by-step explanation:

Length of rectangle = 5.6 cm

Width of rectangle = 2.1 cm

Area of rectangle = Length of rectangle×Width of rectangle

⇒Area of rectangle = 5.6×2.1

⇒Area of rectangle = 11.76 cm²

11.76 has 4 significant figures in order to write this term in 2 significant terms we round of the term

The last digit in the decimal place is 6. Now, 6≥5 so we round the next digit to 8 we get

11.8

Now the last digit in the decimal place is 8. Now, 8≥5 so we round the next digit to 2 we get

12

∴ Hence the area of the rectangle when rounded to 2 significant figures is 12 cm²

5 0
3 years ago
What is the value of (-4) (32)(1/4)?
Naddika [18.5K]

Answer:

it's −32

Step-by-step explanation:

my bad if u get it wrong or anything

6 0
3 years ago
We have 5 circles surrounding a circle, Is there enough room to fit one more circle
Alexus [3.1K]

Answer:

Definitely

Step-by-step explanation:

In order to completely surround a circle, you need six circles to do that while here in the question it is mentioned that currently there are only five circles surrounding the circle, hence there is enough room to easily fit one more circle.

I just hope that you are satisfied with the answer, Best of Luck.

4 0
3 years ago
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