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Nookie1986 [14]
3 years ago
9

A teacher wants to know whether the boys in the entire school prefer watching television or playing outdoor games after school.

The teacher draws a random sample from the following groups:
All school teachers

All students on the football team

All boys in each grade

All students in each grade

Which of the following groups best represents the population from which she should take a random sample to get the best results for her survey?
Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
7 0
Hello!

You want a choice where everyone has an equal chance to answer

The answer is D) All students in each grade because A is biased because students won't be able to answer, B is biased because it is limited to only to football team and C doesn't give girls the chance to answer

The answer is D) All students in each grade

Hope this helps!
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aksik [14]
Fixed costs:
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x * ( $6.50 + $3.64 ) = x * 10.14
Sales income ( total ):
x * $36.40
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640 + 10.14 x - 36.40 x = 0
640 - 26.26 x = 0
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x = 640 : 26.26 = 24.37
Answer:
The minimum number of passengers needed per cruise, so that the cruise company can be sure it will make a profit is 25. 
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3 years ago
The admission to a local fair is $10 for each adult and $6 for each child. Each ride costs $1.50 for an adult and $1 for a child
S_A_V [24]
So first start out by writing an expression for the cost of the child and the adult separately.

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6 0
3 years ago
Can a hypothesis ever be 100% proven as a fact? why
Aneli [31]
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6 0
2 years ago
Sara jumps off a diving board that is 6 feet above the surface of the water her height above the surface of the water h in feet
Flauer [41]
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t=2 seconds...

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7 0
3 years ago
I need help with this question!<br> Experts only please <br><br> Will mark brainliest
Naily [24]
3x + 2y(100)
yes he was correct
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i know i’m not an expert but i wanted to help :)
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