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Delvig [45]
3 years ago
10

Staff from the school newspaper is taking a poll to find out how students in the school are going to vote in the upcoming electi

on for class president. Which group would best represent a sample population?
Every tenth student staying after school.
Every tenth student in the library at lunch.
Every tenth student in the main hallway between class.
Every tenth student in the student section at the school football game.
Mathematics
2 answers:
Sav [38]3 years ago
7 0

<u>Answer:</u>

The correct answer option is 'Every tenth student in the main hallway between class.'

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

Every tenth student in the main hallway between class would best represent the sample population since majority of the students transit this hallway unlike the rest of the options.

For instance, polling every tenth student in the library at lunch would result in the favor of views of students who frequently visit the library and polling every tenth student in the student section at the school football game would go in favor of those who prefer sports.


icang [17]3 years ago
6 0

Answer:

C.

Step-by-step explanation:

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A factory made 900 jars of peanut butter. 35% of the jars contained creamy peanut butter. How many jars of creamy peanut butter
DIA [1.3K]

Answer:

315 jars

Step-by-step explanation:

This question is merely another way of writing: what is 35% of 900?

Now, when we look at it that way, it's easy to solve.

So, the way to solve is to either multiply 35% by 900, or just interpret that as 0.35 times 900. Anyway, the result is 315.

I hope this helped a bunch! Tell me if you need any further assistance...

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5 0
2 years ago
How do u solve <br> 1×-2y=4<br> -1×+10y=8
Molodets [167]

Answer: x = -8 ; y = -6

Step-by-step explanation:

1*x-2*y=4

1*x = 4 + 2*y

x = 4 + 2*y

Now you replace the value of x on the following equation:

-1*x+10*y=8

-1*(4 + 2*y) = 8

-4 - 2*y = 8

-2*y = 8+4

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y = -12/2

y = -6

You replace the value of y in the previous equation:

x = 4 + 2*y

x = 4 + 2*(-6)

x = 4 - 12

x = -8

6 0
3 years ago
If 2x<br> + 13x – 7 = 0, then x could equal to which of the following?
Leokris [45]

Answer:

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Step-by-step explanation:

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x = 7/15

7 0
3 years ago
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A tennis player wins a match 55% of the time when she serves first and 47% of the time when her opponent serves first. The playe
Ray Of Light [21]

ok so she has a 50% chance of serving first so if she serves first she has a 55% percent chance of winning multiply .55 and .50 to get .275 now she also has a 50% chance of not serving first so multiply .47 and .50 to get .235 now that you have the two probabilities of her winning you add them together so .275+.235 = .51 so she has a <u>51%</u> chance of winning the game
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Step-by-step explanation:

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