Question:

Accept that the unpredictable variable xx, showed up underneath, addresses the number events . P(x)P(x) addresses the probability of a heedlessly picked individual having gotten that number of speeding tickets during that period. Use the probability allotment table showed up underneath to react to the going with requests. 2

xx P(x)P(x)

0 0.3176

1 0.2705

2 0.2469

3 0.0832

4 0.0485

5 0.0333

6+ 0.0000

a) What is the probability that an indiscriminately picked individual has gotten four tickets in a three-year time period?

P(x=4)=P(x=4)=

b) What is the probability that an indiscriminately picked individual has gotten three tickets in a three-year time period?

P(x=3)=P(x=3)=

c) What is the probability that that a self-assertively picked individual has gotten more than one tickets in a three-year time frame?

P(x>1)=P(x>1)=

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d) What is the probability that that an indiscriminately picked individual has gotten two or less tickets in a three-year time period?

P(x2)=P(x2)=

I need help

In a particular year, it was surveyed that 1,000,000 of the 307,000,000 occupants of the United States are HIV-positive. (HIV is the contamination that is acknowledged to cause AIDS.) The Repeatedly Reactive Immunoassay (RRIA) scientific test precisely dissect the presence of AIDS/HIV 99.7% of the time and successfully break down its nonattendance 98.5% of the time. (Round your reactions to four decimal spots.)

(a) Find the probability that a person whose test results are positive truly has HIV.

(b) Find the probability that a person whose test results are contrary doesn't have HIV.

(c) Find the probability that a person whose test results are positive doesn't have HIV.

(d) Find the probability that a person whose test results are pessimistic truly has HIV.

(e) Which of the probabilities would you be enthused about if you or someone close to you attempted positive?

the probability that a person whose test results are positive truly has HIVthe probability that a person whose test results are adversarial doesn't have HIV the probability that a person whose test results are contrary truly has HIV

(f) Which of these events is a fake positive?

the probability that a person whose test results are unfavorable doesn't have HIVthe probability that a person whose test results are adversarial truly has HIV the probability that a person whose test results are positive doesn't have HIVthe probability that a person whose test results are positive truly has HIV

Which is a counterfeit negative?

the probability that a person whose test results are positive truly has HIVthe probability that a person whose test results are opposite truly has HIV the probability that a person whose test results are antagonistic doesn't have HIVthe probability that a person whose test results are positive doesn't have HIV

(g) Discuss the comfort of this scientific test.

(h) It has been prescribed that all pioneers to the United States should be gone after for HIV before being allowed into the country. Talk about this suggestion.

Brandybuck Insurance Company (BIC) is finishing up whether to ensure the presences of those driving a mission to Moria. Considering past experience, the probability of suffering such an excursion is 95.5%. In case BIC charges a cost of 8,508 silver coins and would pay an end benefit of 56,934 silver coins if the ensured were to kick the container, what is the by and large expected worth of this assurance technique to BIC?

Round to the nearest silver coin contingent upon the circumstance. In case the ordinary worth is a hardship to BIC, enter your answer as a negative number.

There are 12 people, including Amanda and Marc, applying to get individual from another leading body of trustees involving a president, a VP, a secretary and 4 standard people.

(a) what number different leading body of trustees can be outlined if the people are picked subjectively?

(b) what number particular board can be molded in which Amanda has a title?

(c) What is the probability that Amanda has a title?

(d) what number different warning gathering fuse Marc as a typical part and Amanda as a named one?

(e) What is the probability that Amanda has a title and Marc is a typical part?

QUESTION 10 Which of the following is true in regards to the Chi-Square Test and The Fisher Exact Test ? (Select all that apply) That the Fisher Exact Test is a better alternative of a test than the Chi-Square if one of our expected cell counts is less than 5. That if all our expected cell counts are greater than 5, the chi-square test is an excellent test. The Fisher exact test is also still excellent but a much more tedious statistic to calculate than the Chi-Square. That the Chi Square test and Fisher Exact Test can be used to test the association between two quantitative variables. The Chi-Square test gives more accurate results than the Fisher Exact Test if one of our expected cell counts is less than 5.1.For a large sample size, the Pearson and Fishers exact test produce almost identical results and conclusions. a. true b. false 3'. If the sample size and expected cell counts are small [less than 5] for the goodness of fit test, what test should one use? a. Pearson lChi-square b. Fishers exact test c. Not an option presented here 3. If an analyst wants to know the relationship between if an item was returned {Yes or Noland the cost of goods [as lowII medium, and big h}, what test is most appropriate? a. Pearson lChi-square for goodness of fit b. Pearson Chisquare for independence c. Fishers exact test 4-. What statistic should he used to assess the effect size for a Pearson chi-squa re test for a 2x2 table {i.e., two binaryr variables)? a. Resid ual b. Phi c. Fishers exact test QUESTION 7 The Fisher LSD test is sometimes called a O protected t test protected F test chi-square test q-sort test