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Schach [20]
3 years ago
7

The student government at the local middle school surveyed students to help plan the end-of-year party. For the first sample, th

ey surveyed every other person at sports practice after school. For the second sample, they surveyed every fifth person entering the cafeteria where all students eat. Which statement about the samples is true?
Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
6 0

Answer:

Explained below.

Step-by-step explanation:

Convenience sampling is a kind of non-probability-sampling (i.e. all items doesn’t have an equivalent chance of being selected), which doesn’t comprises of random collection of items. Convenience sampling is where we take in items which are easy to reach.  This sort of sampling technique results in a biased sample.

Systematic sampling is a kind of probability sampling method in which individuals from a larger population are nominated according to a random initial point and a static, periodic interval. If the individual <em>k</em> is selected as the first sample then the sample space consists of every <em>k</em>th individual.

In this case the first sample is an example of convenience sample and the second is a systematic sample.

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James bought a house that needs repairs in the 24 ft by 15 ft back yard. He
son4ous [18]

Answer:

below

Step-by-step explanation:

area to be repaired = 24*15=360ft^2

1 bag = 2ft^2

? 360ft^2

360/2 = 180 bags needed

cost of bags = 180*24.95=4491$

7 0
2 years ago
suppose that the local sales tax rate is 6.25% and youpurchased a used carr for 16,800. what is the car's total cost
Gwar [14]

Total= Car Cost + (Car Cost * Tax %)


Total= $16,800 + ($16,800 * 6.25%)

convert % to decimal form; divide % by 100


Total= $16,800 + ($16,800 * 0.0625)

multiply inside parentheses


Total= $16,800 + $1,050


Total= $17,850



ANSWER: The total cost for the used car with tax is $17,850.


Hope this helps! :)


8 0
3 years ago
What is the answer for 12 and 13
Rzqust [24]
Answer for #12 Is Length = 630FT & Width 335 FT
Answer for #13 is 4600 Items & 7800 Items. I have this workbook with the same problems :) Hope this helped :)
6 0
3 years ago
Divide. −1/9÷3/4 <br> −4/27 <br> −1/12 <br> 1/12 <br> 4/27<br> PLZZZZ HELP FAST!
ivanzaharov [21]

\frac{ - 1}{9}  \div  \frac{3}{4}  \\  \\  \frac{ - 1}{9}  \times  \frac{4}{3}  \\  \\  \frac{( - 1) \times 4}{9 \times 3}  \\  \\  \frac{ - 4}{27}

7 0
3 years ago
CAN SOMEONE HELP ME PLEASE ASAP!?
GalinKa [24]

Answer:

true

Step-by-step explanation:

the lines of the new shape are parallel to the lines of the original shape, there seems to be the same scaling factor for all sides and all "projection" lines BB' and CC' cross at A, which is also A' Ave the center of the dilation.

5 0
2 years ago
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