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sladkih [1.3K]
2 years ago
11

In each of the following situations, indicate what type of sampling technique was used:

Mathematics
1 answer:
Degger [83]2 years ago
6 0

The type of sampling that was used in each case is indicated as follows:

a. At a baseball game, you sit in a certain section. From each section 3 people are selected and will participate in an activity. [systematic]

b. Every 500th battery that is produced Is checked to see how long it lasts. [convenience]

c. To select a winner Of a door prize you place all-the tickets In a bowl and pick one out. [random]

d. A drug company wants to determine the effectiveness of a new medication. They put an advertisement on the radio asking non-smokers between the ages of 35 and 50 to call to participate in a study.  [stratified]

e. A high-school wishes to see if hazing Is an issue within the school. TO do this the school divides the school by homerooms and takes a random sample of 50 homerooms, Sampling everyone in those rooms. [cluster]

f. A researcher gives one set of students a caffeine pill and another set of students a placebo. He looks at how well each group does at paying attention at school by pairing students in each group with each other. [matched-pair]

<h3>2. -Identify the following as continuous or discrete variables. </h3>

b. Number on a sports jersey [Discrete]

a. Lifetime, in hours, of 12 batteries [Continuous]

c. Number of drinks you order at a restaurant [Continuous]

<h3>What is sampling?</h3>

Sampling is a statistical analysis technique in which a preset number of observations are drawn from a larger population.

Depending on the sort of study being conducted, the methods utilized to sample from a broader population may include simple random sampling or systematic sampling.

Learn more about sampling:
brainly.com/question/24466382
#SPJ1




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Let be F(x) = f\circ g (x) = (x-1)^{4}, then expression for f(x) and g(x) are, respectively:

f(x) = x^{4} and g(x) = x-1

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5 grams of chucknorrisidium created, decays at a half-life of 16,000,000 Need 1 gram for experiments. How long before the is 1 g
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Answer:

the time taken for the element to remain 1 gram is 38,400,000 unit.

Step-by-step explanation:

Given;

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The time taken for the element to remain 1 gram is calculated as;

          mass remaining                                      time

             5 g                                                        0

             2.5 g                                                    16,000,000

             1.25 g                                                   32,000,000

            0.625 g                                                 48,000,000

Interpolate to obtain the time at 1 gram;

1.25 g ----------------------------------   32,000,000

1 g --------------------------------------------- x

0.625 g --------------------------------------- 48,000,000

\frac{1.25 - 1}{1.25 - 0.625} = \frac{32,000,000 - x}{32,000,000 - 48,000,000} \\\\\frac{0.25}{0.625} = \frac{32,000,000 - x}{-16,000,000} \\\\-4,000,000= 20,000,000 - 0.625x\\\\0.625x = 20,000,000 + 4,000,000\\\\0.625x =  24,000,000\\\\x = \frac{24,000,000}{0.625} \\\\x = 38,400,000

Therefore, the time taken for the element to remain 1 gram is 38,400,000 unit.

         

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