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3 years ago

Determine whether each question is biased. Explain your answer.

2 answers:

8 0

Biased because the survey was conducted in a limited field of people aka health club which does not include other people, perhaps an unhealthy club? Or the people who are not a part of the health club? Or people who do not care about their health?

just olya [345]3 years ago

7 0

<h2>Answer:</h2>

A biased question is a question where you cannot expect a fair reply from the respondents. The people reply in a specific way and its mostly inclined towards one aspect or one direction of the survey.

Now the question is : A beverage company conducts a survey in the lobby of a health club to determine people's favorite beverage.

This question is definitely biased as first its conducted in a lobby where there will be few people and mostly they will be employees of the health club. They all an answer the same way.

Secondly, the survey is conducted in a health club and people who visit such clubs usually do not prefer sodas or beverages.

Rather this survey would have conducted with few hundred people from both groups - the healthy preference and non healthy preference. Then it would have been a fair survey.

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Answer:

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Step-by-step explanation:

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m_a_m_a [10]

Question:

The recursive function $f(0) = 1$ , $f(n) = f(n-1) + 2n$ represents the nth term of a sequence. Determine the explicit function

Answer:

$f(n) = n^2 + n+1$

Step-by-step explanation:

Given

$f(0) = 1$

$f(n) = f(n-1) + 2n$

Required

Write an explicit formula

Let n = 1

$f(1) = f(1-1) + 2*1$

$f(1) = f(0) + 2$

$f(1) = 1 + 2 = 3$

Let n = 2

$f(2) = f(2-1) + 2*2$

$f(2) = f(1) + 4$

$f(2) = 3 + 4 = 7$

Let n =3

$f(3)=f(3-1) + 2 * 3$

$f(3)=f(2) + 6$

$f(3)=7+ 6 = 13$

Let n = 4

$f(4) = f(4 - 1) + 2 * 4$

$f(4) = f(3) + 8$

$f(4) = 13+ 8 = 21$

So, we have:

$f(1) = 3= 1 + 2 * 1=1+0*1*2*1$

$f(2) = 7= 3 + 2 * 2=1+1*2+2*2$

$f(3) = 13= 7 + 2 * 3= 1+2*3+2*3$

$f(4) = 21 = 13 + 2 * 4= 1+3*4 +2 *4$

Following the above pattern:

$f(n) = 1 + (n - 1) * n + 2 * n$

$f(n) = 1 + n(n - 1) + 2n$

Open bracket

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

$f(n) = 1 + n^2 + n$

$f(n) = n^2 + n+1$

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2 years ago

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BabaBlast [244]

Answer:

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Step-by-step explanation:

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22400 miles

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3 years ago

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AlekseyPX

Answer:

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Step-by-step explanation:

The question simply asks us to plug in 45 minutes into the given equation. In the graph, we see that y-axis is defined to be time. Therefore we set y=45 and solve for x.

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205=6x (divide both sides by 6)

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2 years ago

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Murljashka [212]

Answer:

Step-by-step explanation:

Ok, so break this down into each line and Graph

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y = 10x

b) begins at (0,40) [also known as y-intercept], passes through (20,200)

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y = 8x +40

Graph is shown at bottom

Repeat the process for the rest

Break it down like this

2) A graph with days on the x axis and number of pages on the y axis.

There are two lines.

One line begins at (0,280) and passes through the point (20,80)

The other line begins at (0,240) and passes through the point (20,80)

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80 - 240/ 20 - 0 = Slope 2

(0, #) = y-intercept = #

3) A graph with days on the x axis and number of pages on the y axis.

There are two lines.

One line begins at the origin and passes through the point (25,200).

The other line begins at (5,0) and passes through the point (25,200).

200 - 0/25 - 0 = Slope 1

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(0, #) = y-intercept = #

4) A graph with days on the x axis and number of pages on the y axis.

There are two lines.

One line begins at the origin and passes through the point (7,56).

The other line begins at (0,40) and passes through the point (7,56)

56-0/ 7-0 = Slope 1

56-40 / 7-0 = Slope 2

(0, #) = y-intercept = #

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1 year ago