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ZanzabumX [31]
3 years ago
8

In California in 2000, the ballot included an initiative to add "none of the above" to the list of options in all candidate race

s. Prior to the election, a Field Poll indicated that support for the measure was 10% below opposition for the measure. The poll was a telephone survey of 1000 registered voters in California. According to the Field Poll, "The survey was completed by telephone in English and Spanish using random digit dialing methods." A spokesperson for the initiative was critical of the poll because only 1000 people were surveyed. He pointed out that there are 23.5 million registered voters in California. Is his criticism valid? Group of answer choices No, because the sample was randomly selected. Yes, because it is impossible for 1,000 people to be representative of 23,500,000 people. No, because he was a spokesperson for the initiative, so he is biased. Yes, because a telephone survey will not represent the opinions of those without telephones.
Mathematics
1 answer:
sveticcg [70]3 years ago
4 0

Answer:

No, because the sample was randomly selected.

Step-by-step explanation:

In this example, the main element that we need to focus on is the way in which the sample was determined. We learn that the sample was taken in California with 1000 people. However, this sample was random, and the survey was conducted in both English and Spanish. The fact that this was a random sample means that it is representative of the population. The size of the population does not affect the accuracy of a random sample.

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dimaraw [331]

Answer: speed of the car is 88 miles per hour

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Step-by-step explanation:

Number of miles travelled by car = 312

Number of miles travelled by motorcycle = 272

Let x = speed of the car

Let y = speed of the motorcycle

If the car's speed is 10mph more than the motorcycle's, it means

x = y + 10 - - -- - - 1

Time taken for car to travel 312 miles is distance /speed = 312/x

Time taken for motorcycle to travel 272 miles is distance /speed = 272/y

The car travels 312 miles in the same time that a motorcycle traveled 272.

This means

312/x = 272/y

312y = 272x

y = 272x/312

Substituting y = 272x/312 into equation 1, it becomes

x = 272x/312 + 10

312x = 272x + 3120

312x-272x = 3120

40x = 3120

x = 3120/40 = 78 miles per hour

x = y + 10 = y + 78

x = 88 miles per hour

3 0
3 years ago
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Step-by-step explanation:

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5 0
3 years ago
Juan is 3 times as old as Carmen. Together, their ages add up to 24. How old is each person?
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Two points A and B on a plan represent two localities 12 m apart. Given that the segment AB is 6cn long, find the scale used to
natka813 [3]

Answer:

The scale is 1:200

Step-by-step explanation:

On the plan we have the drawing as 6 cm

In real representation, we have the distance as 12 m

Firstly we have to convert to same unit

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Mathematically, 100 cm is 1 m

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3 years ago
Find ? (inscribed angle)
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9514 1404 393

Answer:

  107°

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  X = 180° -Q

  X = 180° -73° = 107°

3 0
3 years ago
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