1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lora16 [44]
3 years ago
10

Angela wants to know how many families in her neighborhood plan to attend the parade. She puts all 120 of the neighborhood addre

sses 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
Mathematics
2 answers:
deff fn [24]3 years ago
4 0
The answer would be b
NeTakaya3 years ago
3 0
Your answer should be A
You might be interested in
Michelle bought five packs of crayons for $16.25 What is the cost of a pack of crayons, in dollars, if all the packs cost the sa
fomenos

Answer:

Michelle bought a pack of crayon for $3.25

Step-by-step explanation:

Number of packs = 5

The cost of a pack of crayons =

(Cost of 5 packs of crayon) / (number of packs of crayons)

The cost of a pack of crayons = ($16.25 ) /  5

The cost of a pack of crayons = $3.25

3 0
2 years ago
6. 150 is 75% of what number?
lora16 [44]

Answer: 8.2

Step-by-step explanation: So the way i do it is first i see that 6.15 is 75% of a number, and i know that 75% is 3/4. so i start by divided 6.15 by 3, and getting 2.05. i then times it by 4, making it 4/4. Therefore, getting 8.2

4 0
3 years ago
Read 2 more answers
The Aquarium charges $16.00 for admission and $2.50 for each ride ticket. Mountain Rides charges $25.00 for admission and $0.25
Darina [25.2K]

Answer:

B

Step-by-step explanation:

Because 16 + 2.50 is less than 25 + 0.25x

7 0
2 years ago
Which mixes number is equivalent to the improper fraction 17/10
Romashka [77]

1 7/10 is equivalent to the improper fraction 17/10

8 0
3 years ago
I need help with the top 3 plz
attashe74 [19]

Answer/Step-by-step explanation:

Recall: SOHCAHTOA

1. Reference angle = 70°

Adjacent side = x

Hypotenuse = 6 cm

Apply CAH. Thus,

Cos 70 = adj/hyp

Cos 70 = x/6

6 × cos 70 = x

2.05 = x

x = 2.05 cm

2. Reference angle = 45°

Adjacent side = x

Hypotenuse = 1.3 m

Applying CAH, we would have the following ratio:

Cos 45 = adj/hyp

Cos 45 = x/1.3

1.3 × cos 45 = x

0.92 = x

x = 0.92 m

3. The who diagram is not shown well. Some parts are missing, however you can still solve the problem just the same way we solved problem 1 and 2.

6 0
3 years ago
Other questions:
  • Three of the four golfers 1 L of water. The fourth golfer drinks 1.5 L of water. How many milliliters of water did the group dri
    6·1 answer
  • The length of a rectangle is 5ft longer than twice the width. if the perimeter is 70 ft. find the length and width of the rectan
    8·1 answer
  • I really need help pls helpme​
    7·1 answer
  • Can SOMEONE REAL ACTUALLY HELP ME LIKE DANG
    15·1 answer
  • 8. A rain barrel collected 75 gallons of water. Water leaked
    13·1 answer
  • Plz help!!.<br> Bahsjajajqjjajdjwk
    9·1 answer
  • PLEASE HELPP MEE!!!! MATH!!! PLEASEEE HELP ME!!!!!
    12·1 answer
  • What do you get when you subtract 9 from b??​
    14·2 answers
  • Which of the following number lines and solution sets show the values of r that make the inequality -2r+3&lt;9 true
    5·1 answer
  • Please help me, I feel so idiotic right now
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!