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posledela
3 years ago
8

What’s a random sample survey

Mathematics
1 answer:
Fudgin [204]3 years ago
4 0

Answer:

its a variety of selection techniques in which sample members are selected by chance


Step-by-step explanation:


You might be interested in
Show all work to solve 3x^2 + 5x − 2 = 0
Ratling [72]

Answer:

x=1/3 or x=−2

if i can be brainliest that would be great

Step-by-step explanation:

Step 1: Add 2 to both sides.

3x^2+5x−2+2=0+2

3x^2+5x=2

Step 2: Since the coefficient of 3x^2 is 3, divide both sides by 3.

3x^2+5x/3=2/3

x^2+5/3x=2/3

Step 3: The coefficient of 5/3x is 5/3. Let b=5/3.

Then we need to add (b/2)^2=25/36 to both sides to complete the square.

Add 25/36 to both sides.

x^2+5/3x+25/36=2/3+25/36

x^2+5/3x+25/36=49/36

Step 4: Factor left side.

(x+5/6)^2=49/36

Step 5: Take square root.

x+5/6=±√49/36

Step 6: Add (-5)/6 to both sides.

x+5/6+ −5/6=

−5/6±√49/36x=−5/6±√49/36x=

1/3 or x=−2

3 0
3 years ago
Find the value of x and y.<br><br><br>I will give brainliest to the best awnser, thank you. ​
frez [133]

Answer:

the value of y and x are 16times(9xdividedby5)

4y= 4times(9xdividedby5)

Step-by-step explanation:

4 0
2 years ago
The price of a skateboard is reduced by 25%. The original price was $120. Find the new price.
8_murik_8 [283]

New price = <u>90 dollars</u>

<u></u>

25% of 120 = 30

Price is reduced 25% from 120 so,

120 - 30 = 90

Amount of discount = 30

8 0
2 years ago
Fatou has $150 in her bank account. She buys a bike for $200. What is Fatou’s account balance now? Show your work.
mel-nik [20]

Answer:

Fatou owes the bank $50

Step-by-step explanation:

Usually when you owe a bank, you pay more then what you owe as intrest. I hope this helps! :)

4 0
3 years ago
Read 2 more answers
If someone makes 13 of the 18 shots they take, what is their success percentage?
lisov135 [29]

Answer:

72%

Step-by-step explanation:

13 divided by 18 is .72 so, as a percentage, this is 72%

4 0
2 years ago
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