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taurus [48]
3 years ago
10

A market researcher obtains a list of all streets in a town. She randomly samples 10 street names from the list, and then admini

sters survey questions to every family living on those 10 streets. What type of sampling is this?
Mathematics
1 answer:
inessss [21]3 years ago
5 0

Answer: Simple random sampling

Step-by-step explanation:

Given: A market researcher obtains a list of all streets in a town. She randomly samples 10 street names from the list, and then administers survey questions to every family living on those 10 streets.

Since she randomly samples street names , therefore the type of sampling is simple random sampling.

  • A simple random sample is a sample that is a subset of the population the researcher surveyed selected in a way such that all the individuals in the population has an equal chance to be selected.

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andy is wrapping gifts for his family. he ties 25 inches of ribbon around each gift. which function gives the relationship betwe
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The total length of the ribbon used is expressed as r and is a product of the number of gifts (g) and the length of ribbon tied in each gift. This relationship may be expressed by the equation,
                                  r = (25) x (g)
8 0
3 years ago
How many elements are in the union of five sets if the sets contain 10,000 elements each, each pair of sets has 1000 common elem
masya89 [10]

Answer:

40951

Step-by-step explanation:

Using the principles of inclusion - Exclusion

Where C(n,r)=n!/(n-r)!r!

Total elements in the five sets including number repetition is given as (10000)×C(5, 1) =10000× 5!/(5-1)!1!=10000×5=50000

Total Number of elements in each pair including number repetition of sets is given as

=(1000) × C(5, 2) =10000

Number of elements in each triple of sets is given as

=(100) × C(5, 3) =1000

Number of elements in every four sets

=(10) × C(5, 4)=50

Number of elements in every one set

(1) × C(5, 5)=1

Therefore total number of unique elements=50000-10000+1000-50+1

=40951

5 0
3 years ago
Evaluate the temputure formula f=1.8C + 32 for C=40
sweet-ann [11.9K]

Answer:

1.8 × 40 + 32 = 104

if i got it wrong than your teacher is on crack

3 0
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1/3 because there are 3 people and only one correct answer
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The sum of1/2 and 1/5 is between 1/2 and 1?
KATRIN_1 [288]

Answer:

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3 years ago
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