Mathematics, 10.12.2019 21:31 jesseniaindiaaoyr75n
Aresearcher wants to develop a product for families who have small children. he needs to determine if there is a nationwide interest in a toy that will children describe their emotions. he asks only a sample of the population to complete his survey. what should be true of the sample so that the results of the survey can be used to predict the results of surveying the population?
a) the size of the sample should be the same size as the population.
b)the families included in the sample should represent the families in the population.
c) the families included in the sample cannot be included in the population.
d)the size of the sample should be larger than the size of the population.
Answers: 1
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What is the ratio for the surface areas of rectangle prisims shown below given that they are similar and that the ratio of their edge lengths is 7: 3
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Mathematics, 21.06.2019 16:30
An empty bucket is placed under a faucet dripping at a constant rate of 4 milliliters per minute. with the given information, which of these statements is a reasonable conclusion? a there will be 24 milliliters of water in the bucket after 16 hour. b there will be 60 milliliters of water in the bucket after 14 hour. c there will be 160 milliliters of water in the bucket after 20 minutes. d there will be 100 milliliters of water in the bucket after 40 minutes.
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Mathematics, 21.06.2019 19:20
Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?
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Mathematics, 21.06.2019 21:10
Which question is not a good survey question? a.don't you agree that the financial crisis is essentially over? 63on average, how many hours do you sleep per day? c. what is your opinion of educational funding this year? d.are you happy with the availability of electronic products in your state?
Answers: 2
Aresearcher wants to develop a product for families who have small children. he needs to determine i...
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