A certain federal agency employs three consulting firms; A, B and C. The probability that the federal agency employs company A is .40, company B is .35 and company C is .25 respectively. From past experience it is known that the probability of cost overruns given the consulting firm is employed is.05 for company A, .03 for company B and .15 for company C. Suppose a cost overrun is experienced by an agency(a) What is the probability that the consulting firm involved is company
(b) What is the probability that it is company

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Answer 1
Answer:

Answer:

attached below

Step-by-step explanation:


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A new drug to treat psoriasis has been developed and is in clinical testing. Assume that those individuals given the drug are examined before receiving the treatment and then again after receiving the treatment to determine if there was a change in their symptom status. If the initial results showed that 2.0% of individuals entered the study in remission, 77.0% of individuals entered the study with mild symptoms, 16.0% of individuals entered the study with moderate symptoms, and 5.0% entered the study with severe symptoms calculate and interpret a chi-squared test to determine if the drug was effective treating psoriasis given the information below from the final examination.

What is pi/π used for in math?

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Its used to find the area and circumference of a circle

Answer:

It is the 16th letter of the Greek alphabet

Used to represent the mathematical constant.

Pi is the ratio of the circumference/diameter.

Hope this helps you!

People who eat lots of fruits and vegetables have lower rates of colon cancer than those who eat little of these foods. Fruits and vegetables are rich in "antioxidants" such as vitamins A, C, and E. Will taking antioxidants help prevent colon cancer? A medical experiment studied this question with 864 people who were at risk of colon cancer. The subjects were divided into four groups: daily beta-carotene, daily vitamins C and E, all three vitamins every day, or daily placebo. After four years, the researchers were surprised to find no significant difference in colon cancer among the groups(a) What are the explanatory and response variables in this experiment?(b) Outline the design of the experiment. Use your judgment in choosing the group sizes.(c) The study was double-blind. What does this mean?(d) What does "no significant difference" mean in describing the outcome of the study?(e) Suggest some lurking variables that could explain why people who eat lots of fruits and vegetables have lower rates of colon cancer. The experiment suggests that these variables, rather than the antioxidants, may be responsible for the observed benefits of fruits and vegetables.

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Answer:

Step-by-step explanation:

(a). The explanatory variables are the antioxidant group, the response variable is the result of the rate of colon cancer

(b)The design of the experiment is stratified Random sampling. I'll suggest there divided into equal group of 216 each.

(c). Double blind is when the people subjected to the experiment are not in the know if they're given placebo or the real antioxidant

(d) No significant difference mean, there is no convincing relationship that those that engage in using antioxidant have reduced colon cancer rate.

(e) Awareness of its history in family, age also.

-3x = 24
Solve for X

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-3x = 24
/-3 on both sides
x = -8

NEED THIS QUESTION ASAP!

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Answer:

1. The last one

2. The third one

Miguel and his family are on vacation and notice an advertisement fee of 0.75

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Answer:

a

Step-by-step explanation:

Find the perimeter of the figure.
Please consider helping!

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Answer:

Perimeter is 56

Step-by-step explanation: