Mathematics
Mathematics, 29.01.2020 05:55, jenadkrson62

Catherine finds that in a randomly selected sample of 500 families in her hometown, 45% own at least one computer.

her research shows that there is a total of 35,000 families in her town. which statements are true?

choose 2 answers pls thx.



a: if she collected data for a random sample of 1000 families in her hometown, then that percentage would be a better estimate for the percentage of all 35,000 families that own a computer.

b: to estimate the percentage well, she would need to collect data for all 35,000 families.

c: since her sample was only 500 families, it is not possible that the percentage is a good estimate for the percentage of all 35,000 families that own a computer.

d: since her sample was randomly selected, she can reasonably infer that about 45% of the 35,000 families in her town own at least one computer.

answer
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 16:30, vant
Which value is not a solution of 8x^3 – 1 = 0
Answers: 1
image
Mathematics, 21.06.2019 18:40, lrnnwb
Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.
Answers: 3
image
Mathematics, 21.06.2019 19:30, raiindrxp
Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)
Answers: 1
image
Mathematics, 21.06.2019 20:00, ellemarshall13
15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form
Answers: 1
Do you know the correct answer?
Catherine finds that in a randomly selected sample of 500 families in her hometown, 45% own at least...

Questions in other subjects: