P(A U B) = 0.9, P(B) = 0.8, P(A n B) = 0.5. Find P(A). %D

Q: Q20 The table shows the scores in a diving competition, ranked from highest to lowest. a) Determine…

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Q: (b) Find the 84" percentile of the number of calories. The 84th percentile of the number of calories…

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Q: Bella makes the first quartile salary for an Actuary. Ellie makes the third quartile salary for a CP…

A: given data,boxplot shows salaries for actuaries and CPAsCPA     minimum = 30 Q1              = 40 Q2…

Q: a. What is the percentile rank for X = 9.5? b. What is the percentile rank for X = 19.5? c. What is…

A: Heh there! Thanks for posting the question. Your question has more than three sub-parts. However, we…

Q: COURSE: HUMAN FACTOR ENGINEERING Eye height is 1630mm and SD is 69 z= 1.64. Calculate the 95 th…

A: The 95th percentile is, z=x-μσ1.64=x-163069113.16=x-1630x=1630+113.16=1743.16

Q: 1 proportion z-test 1. A local news report claims that 40% of the vehicles on the freeways are vans…

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Q: A professor gives A's to students with z-scores of +1.50 or higher. a. What proportion of a class…

A: The distribution of proportion should be normally distributed. z-score = 1.5

Q: VWriat is Which cost represents the 25th percentile? D $9 E. 4 CDs O How many CDs cost between $7…

A: We have given that  From box plot . Minimum =2  Q1=7  Q2=Median =9 Q3=13 Maximum =15

Q: 4 A civic group is selling bumper stickers as a fundraiser. During the first week, they sold 500…

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Q: d. What percent of students score between 70 and 90? e. What percent of students score between 95…

A: Let X be random variable of scores for a standardized test X~ Normal(84, 36)   d) To find:…

Q: C.Tanning: 2,000,000 Americans use tanning facilities C1.3,300 go to emergency rooms with burms.…

A: Since you have posted multiple questions we will answer the first question for you. If you want any…

Q: 1 proportion z-test 1. A local news report claims that 40% of the vehicles on the freeways are vans…

A: Note: " Since you have asked multiple question, we will solve the first question for you. If you…

Q: A sample with a mean of M=8 has an EZ= 56  how many scores are in the sample?   the number of…

A: Given that, Mean = M = 8 EZ= 56  n = ?   Definition of mean :  Mean is defined as sum of all…

Q: A person bought a car for OMR 15000. The next year he decided to sell the car at OMR12000. What was…

A: The formula for percentage loss is: The cost is 15000 when it was bought and the selling price is…

Q: Buffon's coin tosses that land head side up. Are you confident that this proportion is not 0.5? Why?

A: HERE GIVEN, n= 4040 x= no of heads occur = 2048 proportion of head  = p^ = xn = 20484040 = 0.5069…

Q: Q10 MCQ The unemployment rate measures: the number of people unemployed divided by the number of…

A: We Know that  The unemployment rate measures the share of workers in the labor force who do not…

Q: Q4. Among 100 fish caught in a certain lake, 18 were inedible as a result of chemical pollution.…

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Q: On Thursday, 30 students went to after-school tutoring. On Friday, 6 students went. What is the…

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Q: (a) Find the 45h percentile of the lengths. th (b) Find the 76 percentile of the lengths.

A: (a) The 45th percentile of the lengths is, PX<x=0.45PX-μσ<x-47840=0.45Pz<x-47840=0.45 The…

Q: 6. Sophia took a test and scored in the 79th percentile. (a) What percentage of the scores were at…

A: Given that 79th percentile

Q: For the numbers below, find the percent of cases falling above the z-score: a. 0.25 b. -2.0

A: Required probability is P(Z>0.25)

Q: Using the data below which are the numbers of kilos of newspaper contributed by one section of the…

A: The given data is,  25, 64, 15, 42, 64, 30, 30, 12, 45, 63, 45, 25, 70, 48, 82, 16, 17, 42, 33, 75,…

Q: Risa is studying dating behavior of college students. She asks students at her school how many…

A: Given :-   μ = 7.50σ = 2.25 a. What percentage of college students has had fewer than 4 romantic…

Q: a. In which sports activities do the females have the greater percentage of participation? Mark all…

A: From given graph we can determine the % population in any sports activity red line represents…

Q: (c) Calculate the coefficient of determination. Give an economic interpretation to the value…

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Q: e. Graph the picture of this problem with the X and Z values, solve P(Xbar > 8.2) and interpret the…

A: We have to find probability...

Q: X~N(12,3) Find the 87.7 th percentile X.

A: Obtain the value of the 87.7th percentile X. The value of the 87.7th percentile X is obtained below…

Q: 4. DETAILS Angela took a general aptitude test and scored in the 95th percentile for aptitude in…

A: 4. Anglea took a general aptitude test and scored in the 95th percentile for aptitude in accounting.…

Q: (8) In a class of 45 students, Al has a rank of rank of 14. Determine his percentile (after…

A: ANSWER :

Q: Ifp 3c- 6c, find the percentage error in p at c= 1, if the error in c is 0.05.

A: Given problem is :

Q: Sandy owns a small business that would cost $150,000 to replace if it was ever destroyed by fire.…

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Q: In a reading test, 90 pupils out of 140 passed the test. The sample mean was 78. Find p and q where…

A: Consider that p is proportion of pupils, who passed the test.

Q: b) the percentage of people with weight between 48 kgs ang 65 kgs c) the percentage of people with…

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Q: Find the value of the test statistic.  Round to 3 decimal places. Claim:  The proportion of…

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Q: Vhat is the approximate percentage of buyers wh aid between $1740 and $1860? Vhat is the approximate…

A: We have given that,  Let X be the random variable from normal distribution with mean = 1800 and…

Q: For all people who went trick-or-treating, of interest is to determine the proportion who received…

A: The population is the set of all subjects of interest.

Q: A team is studying the proportion of people who drop out of college. They wish to estimate the…

A: A team is studying the proportion of people who drop out of college. They wish to estimate the…

Q: What percent of scores are below a z-score of z=−1.19? (You can use the z-table)

A: Given: z-score = z=−1.19 We want to find the percent of scores that are below a z-score.

Q: Q2/C/A coin is weighted so that heads is twice as likely to appear as tials then P(H) =

A: Given: A coin is weighted so that heads is twice as likely to appear as tails. We are asked to find…

Q: chnicians gather a random sample of fill amounts and find that the mean of the sample is 7.5 ounces…

A: We have,  μ=7.3 The null hypothesis states that the mean is equal to 7.3 whereas the alternative…

Q: extended proportion that relates the B. AGHI~AKJL G

A: we have been given some congruent figures  we have to fill the blanks. ∠A≅∠W∠B≅∠X∠C≅∠Y∠D≅∠Zalso…

Q: 1 d) 50 percentile is the same as the mean. True False

A: 50th percentile is the same as the mean Select true or false ?

Q: Q1:Let p equal the proportion of drivers who use a seat belt in a country that does not have a…

A: Given, p = proportion of drivers who use a seat belt in a country that does not have a mandatory…

Q: Mario is in a fantasy football league. His team is ranked fifth out of 55 teams. No team is (L-0.5E)…

A: Percentile is a measure of location. It divide the data set into 100 equal parts, with 99 points.…

Q: below shows percentages of grades of 700 students. A. 23% B.  27% C.33%

A: Given : The pie chart below shows percentages of grades of 700 students. A. 23% B.  27% C.33% D. 17%

Q: Pharmaceutical scientists tested the effectiveness of a new drug designed to cure malaria. They…

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Q: z = 2 is what percentile? State your answer to the nearest tenth of a percent.

A: The pth percentile of a set of observations is the value below which, p% or (p/100) proportion of…

Q: What percentage of bookcases in the example are large? Large constitute: ______ %

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Q: For the repeated-measures t statistic,df=a. n1+n2-2 b. (n1-1)+(n2-1) c.n-1 d.n-2

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