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Angelina_Jolie [31]
3 years ago
15

Determine whether the sampling method described below appears to be sound or is flawed. In a survey of 511 human resource​ pro

fessionals, each was asked about the importance of the age of a job applicant. The survey subjects were randomly selected by pollsters from a reputable market research firm.
a) it is flawed because it is a census.
b) it is flawed because it is not statistically significant.
c) it appears to be sound because the data are not biased in anyway.
d) it is flawed because it is a voluntary response sample.
Mathematics
1 answer:
Inessa [10]3 years ago
8 0

Answer:

c) it appears to be sound because the data are not biased in anyway.

Step-by-step explanation:

From the information given regarding the sample selection method , the size, the larger sample from which the survey subject were selected, we can conclude that the data is sound and not in anyway biased. The subject were selected from a reputable market research firm, which means the subjects were chosen from a larger sample which is reliable and not just a voluntary pool of subjects. Also, the selection process is randomized. Based on these, there are no flaws which are likely to cause the introduction of bias into the sample selected. Hence, the data is sound and not in any way biased.

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What is 6x – 8 = 4 written as a system? y = 6x – 8 y = –4 y = 6x – 8 y = 4 y = –6x + 8 y = 4
mestny [16]

6x – 8 = 4 written as a system. Hence second option is correct

<u>Solution:</u>

Given, equation is 6x – 8 = 4.

We have to find the equivalent system from given options.

First let us solve given equation, 6x – 8 = 4 ⇒ 6x = 4 + 8 ⇒ 6x = 12 ⇒ x = 2

Now, let us solve one by one option ,so that when we get above solution, that is correct option.

  • y = 6x – 8 and y = -4 ⇒ put y = -4 in y = 6x – 8 ⇒ 6x – 8 = -4 ⇒ 6x = 8 – 4

⇒ 6x = 4 ⇒ x ≠ 2, wrong option

  • y = 6x – 8 and y = 4 ⇒ put y = 4 in y = 6x – 8 ⇒ 6x – 8 = 4 ⇒ 6x = 8 + 4 ⇒ 6x = 12 ⇒ x = 2, right option.
  • y = -6x + 8 and y = 4 ⇒ put y = 4 in y = -6x + 8 ⇒ -6x + 8 = 4 ⇒ 6x = 8 – 4 ⇒ 6x = 4 ⇒ x ≠ 2, wrong option

hence, second option is correct.

6 0
3 years ago
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Quadrilateral PQRS with diagonals PR and SQ that intersect at point T
larisa [96]

Answer:

A. segment PS ≅ segment QR

Step-by-step explanation:

Given that the quadrilateral PQRS is a rectangle then;

  • The diagonals are PR and SQ
  • Point of intersection of diagonals is T
  • Segment PS≅ Segment QR
  • ∠PSQ≅ ∠SQR
  • segment SR≅ segment PQ

8 0
3 years ago
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Six of King Arthur’s knights are sitting around the Round Table eating peanuts. Since each knight suspected the others of not sh
Bogdan [553]

Answer:

You must add the numbers of the neigbors from the one who counted 52, subtract the number of the one who is opposide and divided by 2.

So i calculate

(44 + 60 - 28) = 38

The knight who counted 52 has 38 peanuts.

5 0
3 years ago
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I need the answer to b and c. Pls Help!
mina [271]

Answer:

b) ? = 0

c) ? = 10

Step-by-step explanation:

By observing the equations, we notice a pattern. The resulting number is always equal to one number doubled added to the other number. Therefore, set up two equations as follows:

2(7)+y=14

2x+3=23

Assume that the provided number is the doubled number if it is a perfect factor, with 2, and assume the provided number is not the provided number if the difference between the answer and it is an even number.

Solve:

14+y=14

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Please help I'll give brainliest!
aleksley [76]

the answer is b shift 2 cause the mean of shift to equals 40.4

8 0
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