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kolezko [41]
3 years ago
11

PLZ HELP ME :(

Mathematics
1 answer:
Zanzabum3 years ago
4 0

Answer:

A. The stratified sample assures that the opinions of employees from both locations will be represented.

Explanation:

This option is correct, because it ensures that the results of the survey represent employees' opinions from both rural and urban locations. Gathering employees' opinions from both locations will furthermore ensure that any policy dependent on the results of this survey not only represent urban employees' interests (as they are the majority), but also the rural employees' interests.

Option B is incorrect as a stratified sample will be <em>more </em>expensive to implement than a simple random sample and will <em>not necessarily help to</em> save money over time.

Option C does not apply as it is simply an assumption that has no evidence to support it.

Option D is incorrect as a stratified sample in this case is better than a random sample in generating results that are more representative of the store's employees from both locations.

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On​ Tuesday, it snowed 15 inches in 6 hours. On​ Friday, it snowed 30 inches in 8 hours. On which day did it snow at a greater r
Viktor [21]

Answer: Friday, 1.25 more per hour

Step-by-step explanation: if we take the inches it snowed and divide it by the hours, we get the rate of snowfall for one hour. 15/6=2.5 and 30/8=3.75

To get how much more we take the bigger snowfall per hour minus the smaller snowfall per hour 3.75-2.5=1.25

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2 years ago
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jekas [21]

Answer: last option.

Step-by-step explanation:

- Subtract the fractions that are in the numerator.

- Add the  fractions that are in the denominator.

Then:

\frac{\frac{1}{x}-\frac{1}{y}}{\frac{1}{x}+\frac{1}{y}}=\frac{\frac{y-x}{xy}}{\frac{y+x}{xy}}

- Multiply the numerator of the fraction on the top by the denomianator of the fraction on the bottom.

- Simplify.

Then:

=\frac{(y-x)(xy)}{(y+x)(xy)}=\frac{(y-x)}{(y+x)}

3 0
3 years ago
Read 2 more answers
Tina takes karate classes every Tuesday and Thursday class is 55 minutes long how many hours of class would you have in 3 weeks
ivolga24 [154]
Tina takes Karate classes every Tuesday and Thursday. The classes are 55 minutes long.

Take the 55 minutes and multiply that by 2 {2 represent Tuesday and Thurdsday} 55 x 2 = 110. Tina takes Karate classes for 110 minutes each week. Take the 110 and multiply that by 3 {3 represent the 3 weeks}. 110 x 3 = 330. 330 minutes is 5 hours and 30 minutes.

Tina's total hours of Karate in 3 weeks is 5 hours and 30 minutes.
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Sholpan [36]

Answer:

y = -3

Step-by-step explanation:

This is because horizontal lines have a slope of 0. And for horizontal lines, the equation of the line is y = b. So, b is the y-intercept and the y intercept is -3 so that is the equation of the line.

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pav-90 [236]
The answer is B. Hope that helps
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