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.

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 19:50, khenalilovespandas

Type the correct answer in each box. spell all words correctly. a sequence of transformations maps ∆abc onto ∆a″b″c″. the type of transformation that maps ∆abc onto ∆a′b′c′ is a . when ∆a′b′c′ is reflected across the line x = -2 to form ∆a″b″c″, vertex of ∆a″b″c″ will have the same coordinates as b′.

Answers: 1

continue

Mathematics, 21.06.2019 20:30, AllanCasey12

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

Answers: 1

continue

Mathematics, 21.06.2019 21:20, ladawnrowles005

Drag each expression to the correct location on the solution. not all expressions will be used. consider the polynomial 8x + 2x2 - 20x - 5. factor by grouping to write the polynomial in factored form.

Answers: 1

continue

Mathematics, 21.06.2019 22:30, vsuescun10

For the chance to be team captain, the numbers 1-30 are put in a hat and you get two chances to pick a number, without replacement. which formula correctly shows how to find the probability that you choose the number 1 and then 2?

Answers: 1

continue

You know the right answer?

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