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Vsevolod [243]
4 years ago
13

According to the Harris Poll, 70 % of dog owners buy their dogs holiday presents. Suppose you select a random sample of 25 dog o

wners from among the population of 30 dog owners at the dog park. Let X be a random variable equal to the number of dog owners who buy their dogs holiday presents.

Mathematics
1 answer:
Lana71 [14]4 years ago
7 0

The concluding part is missing in the question and it says we should find the probability that 2 of the people selected cook meals for their dogs

Answer:

P(x2) = 0.1857

Step-by-step explanation:

N = 30; since there are 30 people that own dogs

k = 21; since there are 70% of dog owners who buy gifts for their dogs

n = 25; since we randomly select 25 people among the dog owners

x = 2; since we randomly select 2 people who cook meals for their dogs

Therefore, for clarity sake the solution is in the attachment ;

And the probability is 0.1857

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aniked [119]

Answer:

\[y=-2x+13\]

Step-by-step explanation:

Equation of the line CD is given as \[y=-2x-2\]

Slope of the line CD = -2

Slope of the line parallel to CD = -2

Equation of the line parallel to CD is given by \[y=mx+c\]

\[y=-2x+c\]

But this line passes through (4,5)

Substituting the values in the equation:

\[5=-2*(4)+c\]

=> \[c=5+8=13\]

So the overall equation of the parallel line is given by \[y=-2x+13\]

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3 years ago
The green line below
kenny6666 [7]

Answer:

B, C, D, & E

Step-by-step explanation:

All lines intersect the x axis and y axis so we know B and D are correct. All graphs are in the xy plane unless i (\sqrt{-1}) is involved, or C. It crosses the center (origin) of the entire plane so it crosses the origin, or E.

3 0
4 years ago
Read 2 more answers
An inequality for x is less than 12
mixer [17]

Answer:

x < 12

Step-by-step explanation:

Note that the symbol for:

"less than" is <

"greater than" is >

"less than or equal to" is ≤

"greater than or equal to" is ≥

In this case, the question states that the variable "x" is less than 12. Set the equation: x < 12

x < 12 is your answer.

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3 years ago
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VashaNatasha [74]

Answer:

117º.

Step-by-step explanation:

Angle 5 is a corresponding angle to angle 1, so therefore if angle 1 is 117º, angle 5 is 117º.

Hope this helps!

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3 years ago
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249 km in 3 hours are 83 km in 1 hours


249 : 3 = 83 Km

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3 years ago
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