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Schach [20]
3 years ago
8

The names of 50 contestants are written on 50 cards. The cards are placed in a bag, and three names are picked from the bag. Ide

ntify which sampling technique is used?
Mathematics
1 answer:
Alexus [3.1K]3 years ago
3 0

Answer: simple random sampling

Step-by-step explanation:

  • A simple random sampling is a sampling technique in statistics in which a subset of the population (with population size N) is drawn by the researcher by selecting candidates for sample randomly such that the chances for each candidate to get selected remains equal as \dfrac{1}{N}.

Given : The names of 50 contestants are written on 50 cards.

here ,N= 50

So , the probability for each student to get selected =  \dfrac{1}{50}.

The cards are placed in a bag, and three names are picked from the bag (which is a random action).

Hence, the sampling technique is used is "simple random sampling" .

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First, add the two measurements up, then subtract it from 8.

3 1/2 + 2 1/3

Convert to improper fractions:

7/2 + 7/3

Convert to denominators of 6:

21/6 + 14/6

Add the numerators:

35/6

Subtract from 8:

8 - 35/6

Convert 8 into a denominator of 6:

48/6 - 35/6

Subtract the numerators:

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Alex787 [66]

Answer:

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Step-by-step explanation:

so since the whole thing should equal 180, and the right triangle is 90,

(3x+11)+(5x+15)=90 then solve for that

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divide both sides by 8

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Answer:

Sue's scores for the four games in ascending order are: 97, 98, 98, 107

Step-by-step explanation:

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Her range was 10.  The range is found by taking the highest score and subtracting it from the lowest score.  The highest score had to be greater than 98 and the lowest score had to be less than 98 since we know the mode was 98.

Her mean score was 100.  This mean is found by adding all the numbers together and then dividing by the total numbers listed.  Adding the four scores together and dividing by 4 will equal 100.

Used guess and test:

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Answer:

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