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Gennadij [26K]
3 years ago
6

Matilda asked 20 random people in the street if they would like to discuss what they want to do during the summer break. Seven o

f them said yes.
How is this sample biased?

(1)She should have asked more people.
(2)The people who chose to participate might not be similar to the people who didn’t.
(3)The number of people who agreed was too small.
(4)She should have asked girls only.
Mathematics
2 answers:
ArbitrLikvidat [17]3 years ago
5 0
I think option two is the correct one, because 1 and two contradict eachother and 4 doesn't make sense
netineya [11]3 years ago
5 0

Answer:I know the answer is not number one I choose it and it was wrong


Step-by-step explanation:


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Hello,

If 7/10 boys represent 28 boys so, 3/10 girls ? how many girls ?

cross product

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3/10 > ?

3/10*28/(7/10)=12

There are 12 girls


Step-by-step explanation:


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An equilateral triangle has has an era of 43.5 square feet the height is 8.5 feet what is the Perimeter of the triangle
enot [183]

Answer:

30.7 ft

Step-by-step explanation:

<em>An equilateral triangle with area 43.5 has a height of 8.68 not 8.5</em>

<em>I will do the problem as written even though it is not a possible equilateral triangle</em>

<em>---------------------------------------------</em>

a = (1/2)bh

43.5 = (1/2)b(8.5)

43.5 = 4.25b

b = 43.5/4.25

b = 10.2352941176

-----------------------

p = 3b

p = 3 * 10.2352941176

p = 30.7058823528

~ 30.7 ft

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2 years ago
What is the volume of 6f and 7ft and 9fr
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3 0
3 years ago
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