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RSB [31]
3 years ago
10

The local zoo contracts with one of the local veterinary clinics for pet checkups and sick visites. the zoo manager thought the

vet made more then 375 visits to the zoo in one year, but the actual number was 412. what was the percent error between the actual number of visits and the number of visits the manager thought the vet made
Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
5 0
10%. 10% of 375 would be 37. Add 375 + 37 & it = to 412. Therefore it's a 10% mistake/error.
skad [1K]3 years ago
3 0
Idk this is hard sorry I couldn't help you but you just helped me


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Answer:

14m

Step-by-step explanation:

The area of a circle is given by

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Find the probability that the senator was in the Democratic party, given that the senator was returning to office.
shutvik [7]

Answer:

The probability that the senator was in the Democratic party, given that the senator was returning to office is 0.4715.

Step-by-step explanation:

The complete question is:

Sophia made the following two-way table categorizing the US senators in 2015 by their political party and whether or not it was their first term in the senate.

                   Democratic         Republican         Independent        Total

First Term           11                          28                        11                     50

Returning           33                         26                        11                     70

Total                   44                         54                        22                  120

Find the probability that the senator was in the Democratic party, given that the senator was returning to office.

Solution:

The conditional probability of an event <em>A</em> given that another event <em>X</em> has already occurred is given by:

P(A|X)=\frac{P(A\cap X)}{P(X)}

The probability of an event <em>E</em> is given by the ratio of the number of favorable outcomes to the total number of outcomes.

P(E)=\frac{n(E)}{N}

Compute the probability of selecting an US senator who is a Democratic and was returning to office as follows:

P(D\cap R)=\frac{33}{120}=0.275

Compute the probability of selecting an US senator who was returning to office as follows:

P(R)=\frac{70}{120}=0.5833

Compute the conditional probability, P (D | R) as follows:

P(D|R)=\frac{P(D\cap R)}{P(R)}

            =\frac{0.275}{0.5833}\\\\=0.4714555\\\\\approx 0.4715

Thus, the probability that the senator was in the Democratic party, given that the senator was returning to office is 0.4715.

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