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1 year ago

15

The dot plot shows how many games of chess 8 different members of the chess club played in one month. If Jackson is a new member

of the chess club, how many games of chess is he likely to play in one month?

1 answer:

stira [4]1 year ago

8 0

Answer:

9

Step-by-step explanation:

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add all numbers together then divide by how many numbers there are

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A government official is in charge of allocating social programs throughout the city of Vancouver. He will decide where these so

otez555 [7]

Answer: (0.132132, 0.274368)

Step-by-step explanation:

Given : A simple random sample of 123 people living in Gastown and finds that 25 have an annual income that is below the poverty line.

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Critical value for 95% confidence interval : $z_{\alpha/2}=1.96$

Confidence interval for population :

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$0.203252\pm (1.96)\sqrt{\dfrac{0.203252(1-0.203252)}{123}}\\\\\0.203252\pm0.071118\\\\=(0.20325-0.071118,\ 0.203252+0.071118)\\\\=(0.132132,\ 0.274368)$

Hence, the 95% confidence interval for the true proportion of Gastown residents living below the poverty line : (0.132132, 0.274368)

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2 years ago

∠ABC and ∠DBC are complementary angles. If m∠ABC=6x+13 and m∠DBC=4x−3 what is the value of x?

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Answer:

x=8

Step-by-step explanation:

Complementary angles are equal to 90 degrees.

angle ABC + angle DBC = 90

6x+13+4x-3=90

Combine like terms

6x+4x+13-3=90

10x+10=90

get x alone by subtracting 10 on both sides

10x=80

divide 10 on both sides

x=8

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mihalych1998 [28]

<span>A(x, y) → (x - 3, y + 1)</span>

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