subject
Mathematics, 11.05.2021 08:50 feastershevill

Angela wants to know how many families in her neighborhood plan to attend the parade. She puts all 120 of the neighborhood addresses in a hat and draws a random sample of 30 addresses. She then asks those families if they plan to attend the parade. She finds that 40% of the families plan to attend the parade. She claims that 40% of the neighborhood families would be expected to attend the parade. Is this a valid inference? (5 points) A) Yes, this is a valid inference because the 30 families speak for the whole neighborhood

B) Yes, this is a valid inference because she took a random sample of the neighborhood

C) No, this is not a valid inference because she did not take a random sample of the neighborhood

D) No, this is not a valid inference because she asked only 30 families

ansver
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 14:00, breezyalanah
Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.
Answers: 1
image
Mathematics, 21.06.2019 17:10, naimareiad
Which of the following expressions is equal to 2x^2+8
Answers: 1
image
Mathematics, 21.06.2019 21:30, isamilo520
Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.
Answers: 2
image
Mathematics, 21.06.2019 22:00, Thejollyhellhound20
The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.
Answers: 1
You know the right answer?
Angela wants to know how many families in her neighborhood plan to attend the parade. She puts all 1...

Questions in other subjects:

Konu
Mathematics, 05.01.2021 07:50
Konu
Mathematics, 05.01.2021 07:50