if 20% of vehicles are blue and 1/3 of blue vehicles are trucks what fraction of blue vehicles are trucks

Q: za_2 for the 99% C.I.

A: The value of zα/2 for the 99% confidence interval is 2.58 and it is obtained below:

Q: 3. 12 people got an A, 11 people got a B, 31 people got a C, 9 people got a D, and 5 people got an…

A: Percentage can be calculated, suppose for the people who got C as  (No. Of people who obtained C ÷…

Q: What proportion of cars are driving between 75 and 85 miles per hour?

A: We have given that

Q: percent

A: Please refer to the image below

Q: 5 is 35% of what number using a tape diagram?

A:

Q: Suppose that 54% of people own dogs. If you pick two people at random, what is the that they both…

A: Given: P(Dog) = 0.54 The probability that they both own a dog can be calculated as: P(Both own a…

Q: 7) Find x. 8x 22 3x 2

A:

Q: Show how you reached the final answer An ectopic pregnancy is twice as likely if a woman smokes…

A: Let S be the event that a woman is a smoker E be the event that a pregnancy is ectopic P(E|S) =…

Q: seventeen percent of the plants in the greenhouse are broad leaf plants and the rest are grasses.…

A: Given, that there are broad leaf plants and grasses are in greenhouse, where 17% of the plants in…

Q: Suppose that 43% of people own dogs. If you pick two people at random, what is the both own a dog?…

A: Given, Probabily of a person own a dog is 43 %

Q: A researcher wants to find out the number of students he needs to urvey in a school provided that…

A: Given : total no pf students in a school  N=5000 with margin of error e=5%  To find sample size…

Q: In a survey of 1,700 people who onwed a certain type of car 595 said that they would buy that type…

A: In a survey of 1,700 people who onwed a certain type of car 595 said that they would buy that type…

Q: If 40% of x is 300 then find x

A: Given,40% of x is 300then, x = ?

Q: A survey of 150 people revealed that 115 people like ketchup on their hot dogs, 85 people like…

A: Concept of General Addition Rule: For any two events A and B the General Addition Rule state that:

Q: half of 1/3 pan of brownies = _____ pan of brownies

A:

Q: 6 2/5% of 120 as percentage

A:

Q: 6.4% of what is 56?

A: Solution is given below in step 2.

Q: Of the 328 patients that completed the survey last year, 211 of them claimed to be returning…

A: Given: 328 patients completed the survey 211 patients returning

Q: among students of a certain university 38 like peanut butter, 34% like nutella, and 12% like both.…

A: It is given that:Proportion of students like peanut butter: Proportion of students like nutella:…

Q: If 200 subjects were studied and 120 of them expressed a preference for Brand X, what percentage…

A: The total number of subjects is 200.

Q: 4.9 %23 6.3

A: In figure1  Both chords having same distance it means both are equidistance from the center. so x=5

Q: 33 1/3% of 69 =

A:

Q: In a comparison taste test of two juice drink 780 people preferred Cranberry Blast.Only 220 people…

A: In a comparison taste test of two juice drink 780 people preferred Cranberry Blast.Only 220 people…

Q: A quality-conscious disk manufacturer wishes to know the fraction of disks his company makes which…

A:

Q: 4. A farmer estimated that there were 25 gallons of water left in a tank. If this is an…

A:

Q: If 75% of x is 1500 then x is

A: Given ,  75% of x is 1500 then  We have to find x  We know that ,  75% of x is 1500 means

Q: 35% of a sample of employees are vaccinated.if 390 are not vaccinated, how many are vaccinated

A:

Q: A quality-conscious disk manufacturer wishes to knoww the fraction of disks his company makes which…

A: Given, The no. of sample, n =5431 The number of defective, x = 4943

Q: Suppose 50% of all voters in a population support a politican, SHARE What is the zscore of sample…

A:

Q: 1/2% of 412

A:

Q: You know that 70 percent of the subs at theme parks in the US are yellow.  There are 220 subs in…

A: Solution Given that  We have total sub parks in the US = 220 we know , 70% of them are yellow = 154

Q: If 80% of Mars rovers land in former streambeds and 65% of the rovers in streambeds on Mars find…

A: Solution-: Let, S-Mars rovers land in former streambeds        W- historic evidence of water Given:…

Q: 34 . 23 = 64+3 %3D

A: a^n.b^n= (a.b)^n a^n.a.^m= a^(n+m)

Q: Suppose that 19% of all athletes in a sport use a banned drug. A test is available that detects 88%…

A:

Q: the records at a veterinary clinic show that out of the 3412 animals registered at the clinic,  1712…

A:

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.