Study the diagram. A D 3, 2 6. E 3 В 4.5 F Select the statement that is incorrect. DE A АВ EF АС АС 3 %3D DF 2 АВ DE %3D EF ВС AABC is similar to ADEF 4. II
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A: n(S) = 30 n(A) = 22 n(B) = 17
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Q: Example 5: If AJKM = AMNO, find the value of x and y. L N 57 8х — 7 41 (5y + 8)° M 58° 48° K J
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Q: P(A) = 0.4, P(B) = 0.5, P(A U B)= 0.6 a) Find P(A given B) b) P(B|A)
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Q: P(A) = 0.65, P(B) = 0.25, P(A|B) = 0.5 Find a) P(A ∩ B) b) P(A U B)
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Q: P(A) = 0.6, P(B) = 0.5, P(A U B)= 0.8 a) Find P(A given B) b) P(B|A)
A: P(A) = 0.6, P(B) = 0.5,P(A U B)= 0.8 Now, P(A∩B) = P(A) + P(B) - P(A∪B) = 0.6 + 0.5 - 0.8 =0.3…
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- A market researcher's claim is that women spend more time each day on Facebook than men. If p1 represents the proportion of women on Facebook and p2 represents the proportion of men on Facebook, how would the researcher's claim be represented? a. p1 = p2 b. p1 > p2 c. p1 < p2Social Media Use. A marketing firm would like to test-market the name of a new energy drink targeted at 18- to 29-year-olds via social media. A study by the Pew Research Center found that 35% of U.S. adults (18 and older) do not use social media (Pew Research Center website, October 2015). The percentage of U.S. young adults age 30 and older is 78%. Suppose that the percentage of the U.S. adult population that is either age 18–29 or uses social media is 67.2%.a. What is the probability that a randomly selected U.S. adult uses social media?b. What is the probability that a randomly selected U.S. adult is aged 18–29?c. What is the probability that a randomly selected U.S. adult is 18–29 and a user of social media?At the supermarket, a tasting kiosk invites you to taste a new flavor of biscuits. A marketing studyshows that 70% of supermarket customers will taste the biscuits, 5% of customers who have not tasted the biscuits inwill buy anyway and 15% of people who have tasted the biscuits will buy them. What proportion of customers will buybiscuits ?
- Lilo wants to know if equal proportions of students in her class know how to surf well, know how to surf a little or do not know how to surf. She randomly samples 60 students in her class and asks them if they know how to surf. Twenty students indicate that they do not know how to surf 'don't know', while 30 students indicate they know how to surf well 'know well,' and 10 students indicate they know how to surf ‘a little’. State the hypothesis being tested by Lilo (H0 and HA)? Test Lilo's hypothesis at α of .05. Enter the test statistic, critical value, and decision as part of your answer. Test statistic = Critical value = Do you reject or retain the null hypothesis that the slope is not different from zero? (Enter "Reject" or "Retain"):A survey asked 243 people what alternative transportation modes they use. The results are below.131 walk109 use the bus118 ride a bicycle45 walk and use the bus55 walk and ride a bicycle46 ride the bus and ride a bicyle16 said they use all three modes of pransportationA) How many people only ride the bus ? B) How many people don't use any alternate transportation ?Select the alternative hypothesisHa: Males and females will differ in the amount of money they have on them Ha: Males and females will not differ in the amount of money they have on them
- A company uses an automated process in checking for defective electronic devices that they manufacture. For devices that are defective, 98% of them will be labeled as defective. Three percent of the devices that are okay (not defective) will be labeled as defective. Four percent of the devices made by this company are defective. _____________________ percent of devices that are labeled as defective are not defective.4. A doctor notices that in cities where more people get flu shots, the number of cases of flu decreases. This would be an example of: Group of answer choices A positive relationship A strong relationship A negative relationship A weak relationshipA set of data is given: 3, 7, 11, 11, 16. Jesse calculated a measure of center and got 9.6, which measure of center did he just calculate?
- A survey asked 243 people what alternative transportation modes they use. The results are below.131 walk109 use the bus118 ride a bicycle45 walk and use the bus55 walk and ride a bicycle46 ride the bus and ride a bicyle16 said they use all three modes of pransportationHow many people only ride the bus? ?The career center at Liberty University wanted to see which students utilized the job fair. They wanted to see if class level (Freshman or Senior) had an impact on attendance at the job fair (attended or did not attend). What would the degrees of freedom (df) be for this contingency table? A)1 B)2 C)4 D)None of the above5. A report says that countries with more people are likely to win more medals at the Olympics. This would be an example of: Group of answer choices A moderate relationship A strong relationship A positive relationship A negative relationship