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levacccp [35]
3 years ago
13

For the results of a certain​ survey, the estimated probability of being a car owner was 0.77 for males and 0.62 for females. Ex

press each of these as a conditional probability. The probability of being a car owner ​(CO ​) was 0.77 for males​ (M). Express this as a conditional probability.
Mathematics
1 answer:
yKpoI14uk [10]3 years ago
6 0

Answer:

P(CO|M)=0.77 for male

and P(CO|M^c)=0.62 for female

Step-by-step explanation:

When we talk of conditional probability, we refer to the measure of the probability of an event given that another event has occurred

Here, we are to express the results of the survey as a conditional probability.

For the male part of the question, the conditional probability means that, given that the person is a male, the probability that he is a car owner would be;

P(CO|M)=0.77

For the female part of the question, what we have as a conditional probability is that if a person is a female that she is a car owner is;

P(CO|M^c)=0.62

Please kindly understand that the term M^c refers to M complement in words

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aliya0001 [1]

Answer:

t=\pm 2.95

Step-by-step explanation:

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The t distribution or Student’s t-distribution is a "probability distribution that is used to estimate population parameters when the sample size is small (n<30) or when the population variance is unknown".

The shape of the t distribution is determined by its degrees of freedom and when the degrees of freedom increase the t distirbution becomes a normal distribution approximately.  

Data given

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Solution for the problem

For this case since we don't know the population deviation and our sample size is <30 we can't use the normal distribution. We neeed to use on this case the t distribution, first we need to calculate the degrees of freedom given by:

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We know that \alpha=0.01 so then \alpha/2=0.005 and we can find on the t distribution with 15 degrees of freedom a value that accumulates 0.005 of the area on the left tail. We can use the following excel code to find it:

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3 years ago
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frez [133]

9514 1404 393

Answer:

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Step-by-step explanation:

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  A = π(63.662 yd)² ≈ 12,732.4 yd² . . . . area

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<em>Additional comment</em>

We have used a full-precision value for pi. If you use 3.14, your answers will be different. Your diameter will be about 127.4 yards; your area about 12,738.9 yd².

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The value should the equipment be recorded in aaron company's records is <span>90,000</span>
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