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laiz [17]
3 years ago
11

Dr. Lawrence is the director of Counseling Services at her university. She is planning to conduct a survey of 100 students at th

e university to see how aware they are of the counseling services that are offered at the university. She wants the proportion of first-time students and returning students in her sample to reflect the proportion in the university as a whole (15% first-time and 85% returning). Dr. Lawrence plans to stand in the Student Union and ask people to participate until she has given the survey to 15 first-time and 85 returning students. Which type of sampling method is Dr. Lawrence going to use
Mathematics
1 answer:
Tanzania [10]3 years ago
4 0

Answer:

The type of sampling method Dr. Lawrence going to use is Quota Sampling.

Step-by-step explanation:

In quota sampling participants are chosen nonrandomly so it is not a representative sampling method.  In this case Dr.Lawrence has a quota of 15% for first-time students and 85% for returning, so the survey she is conducting is non-random. The sampling method she should use is Quota Sampling.

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Samuel was riding in the back seat of the station wagon on the way home after a long and tiring day at the
Anon25 [30]

Answer:

Samuel slept for 1/4 of the distance.

Step-by-step explanation:

The information provided are:

  • Samuel fell asleep halfway home.
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  • gone while asleep.

Consider that the total distance covered was 1.

Then from the first point we know that Samuel fell asleep after covering a distance of 1/2.

It is provided that he woke up only after covering half of the remaining distance.

That is, he slept for 1/4 of the remaining distance.

Thus, Samuel was asleep for 1/4th of the entire trip home.

6 0
3 years ago
2x + 3 &gt; 13<br> x= 0<br> is this true?<br> O True<br> O False
omeli [17]

False.

Replace x with 0 and solve:

2(0) + 3 = 0+ 3 = 3

3 is not greater than 13 so the answer is false.

5 0
2 years ago
Z varies directly as x and y, z = 6 when x=2 and y = 6. Find the value of z when x = 3 and y = 8
Monica [59]

Answer:

12

Step-by-step explanation:

 This is a joint variation problem:

              z varies directly as x and y

Interpreting this;

                z ∝ xy

 Therefore;

               z  = kxy

 z = 6, x = 2, y  = 6

   Now find k,

             6  = 2 x 6 x k

              6  = 12k

               k  = \frac{1}{2}

To find the value of z;

   x  = 3, y  = 8

              z  =  \frac{1}{2}  x 3 x 8  = 12

3 0
3 years ago
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Alex787 [66]

Answer:

A

Step-by-step explanation:

i think thats the answer

8 0
3 years ago
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Use what you know about sine, cosine, and tangent to solve for the missing angle.
Wittaler [7]

Answer:

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Step-by-step explanation:

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3 years ago
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