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enyata [817]
3 years ago
8

Can someone help? i really don’t understand. question is in the picture

Mathematics
1 answer:
Delicious77 [7]3 years ago
5 0

Answer: (-1,2)

Step-by-step explanation:

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A survey was given to a random sample of 400 people living in a certain community. The people were asked whether they supported
Hoochie [10]

The total number of people that will be selected is 14.

<u>Step-by-step explanation:</u>

For stratified random sampling at first we need to divide the population into some strata and then choose sample from each. For the given problem the response category is

Sample size of strata = (Size of entire sample by populaion size) multiply strata size

= (20 by 300) multiply 210

after solving we get, 14

therefore, 14 people will be selected.

One merit is that here since we divide the whole data into stratas and then select samples from that so it can be used as a guard against unwanted samples and also gives more accurate sample measure. Here since we required samples from the population who gave yes and no opinion so it is better to use stratified sampling method otherwise if we use simple random sampling then we may choose those samples who gave no opinion. But since we don't use that method so we can avoid this.

4 0
3 years ago
Is (1, 2) a solution to the inequality 6x - y&gt; 3?
Lostsunrise [7]

Answer:

<u><em>Yes.</em></u>

Step-by-step explanation:

<em>To find the answer we will put it into the equation, since</em><em><u> x = 1 and y = 2</u></em><em> we will write it like this, </em><u><em>6(1) - 2 > 3.</em></u><em>  Since </em><u><em>6 x 1 = 6</em></u><em>, we will now </em><u><em>subtract 6 from 2 which equals 4</em></u><em>.  Therefore, the equation is </em><u><em>correct because 4 is bigger than 3.</em></u>

5 0
3 years ago
What are the domain and range of f (x) = (one-fifth) Superscript x?
ivann1987 [24]

Answer:

domain is all real numbers the range is all real numbers greater thanzero

Step-by-step explanation:

hope this helps may I have brainliest plz

3 0
3 years ago
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Each square represents one square foot. Estimate the area of the figure below.
JulijaS [17]
The estimated area of the figure is 36 square foot.
5 0
3 years ago
Peter has 100$. The price of a watch is 60$. If Peter gets 25% discount,can he buy 2 watches?
yKpoI14uk [10]

yes.

25 percent discount means that the price of one watch is 45 dollars.

45 plus 45 is less than 100.

6 0
3 years ago
Read 2 more answers
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