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:
<u>The correct answer is letter c.</u>
Step-by-step explanation:
The area equation of a triangle is given by:
(1)
Where:
b is the base
h is the height
Let's find first the angle MJK (α), using the tangent definition.
Now, if α = 37° then β (angle JLK) must be:
Now, we can find the distance ML using again the tangent definition:
The base of the triangle LKJ will be:
Therefore, using equation (1) the area of △LKJ will be:
The correct answer is c.
I hope it helps you!
Check the picture below.
$20 when the hours is 0, is pretty much just a base fee Andy has before doing any on location hours of work, namely is a fee the customer owes for the service before anything else, usually is for paperwork required for hte contract.
