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.
1 answer:
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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Answer:
The distance between the ice cream shop and Joe's house is the same as the distance between the ice cream shop and the park. So Joe is not closer to the park or his house, he is in the middle.
Step-by-step explanation:
We consider that the ice cream shop is the zero value in the number line. We assume that going north is positive (right side of the number line) and going south is negative (left side of the number line).
The house position is 10 block north of the ice cream shop, so it is represented by the integer 10.
The park is 10 blocks south of the ice cream shop, so it is represented by the integer -10.
The lower absolute value of the integer, the closer position from the ice cream shop.
If we calculate the absollute value of the House position:
|10|=10
Then, we calculate the the absollute value of the Parkposition
|-10|=10
In conclusion, the distance between the ice cream shop and Joe's house is the same as the distance between the ice cream shop and the park. Joe is in the middle.
