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valentina_108 [34]
3 years ago
11

One of the questions on a survey asked adults a series of questions on attitudes toward automation. The results showed that 2,97

3 out of 4,135 respondents are worried about a future in which robots and computers can do many human jobs; 2,774are worried about the development of algorithms that can evaluate and hire job candidates; and 2,236 are worried about the development of driverless vehicles. (Round your answers to four decimal places.)
(a)

Develop a point estimate of the proportion of respondents who are worried about a future in which robots and computer can do many human jobs.

(b)

Develop a point estimate of the proportion of respondents who are worried that the development of algorithms that can evaluate and hire job candidates.

(c)

Develop a point estimate of the proportion of respondents who are worried about the development of driverless vehicles.
Mathematics
1 answer:
harina [27]3 years ago
7 0
A. Develop a point estimate of the proportion of respondents who are you worried about a future in which robot and computer can do you many human jobs
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A wholesaler requires a minimum of 4 items in each order from its retail customers. The manager of one retail store is consideri
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Answer:

  • It is the last graph: solid line, shaded area over the line x = 2 - x/2

Explanation:

1) <u>Set the algebraigic expression that represents the combinations of sofa and pillow orders:</u>

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  • Number of pillows: 2y (given, since they come in pairs)
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<u>2) Predict the graph of the inequality x + 2y ≥ 4</u>

  • The border line is the equation x + 2y = 4
  • You can choose two points to draw a line
  • Choose the axis-intercepst:

        x = 0 ⇒ 2y = 4 ⇒ y =4/2 ⇒ y = 2 ⇒ point (0,2)

        y = 0 ⇒ x = 4 ⇒ point (4,0)

        Then the lines goes through (0,2) and (4,0) ... [the four graphs meet this]

  • The shading area is above the line because when you solve for y you get y ≥   2 - x/2, and the line is included because the "equal to" part of the symbol (≥ means greater than or equal to).

  •  To state that the line is included the graph uses a continous line instead of a dotted one.

<u>3) Conclusion:</u>

That means that the correct graph is the last one: solid line, shaded area over the line y = 2 - x/2.

Note: a more detailed graph would include the fact that the items cannot be negative, i.e. x ≥ 0 and y ≥ 0, which would result in that the shaded area would be on the first quadrant.

   

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