Assume that random guesses are made for nine multiple choice questions on an SAT test, so that there are n 9 trials, each with probability of success (correct) given by p 0.3. Find the indicated probability for the number of correct answers. Find the probability that the number x of correct answers is fewer than 4. P(X<4) = (Round to four decimal places as needed.)

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Q: Assume that random guesses are made for eight multiple choice questions on an SAT test, so that…

A: It is given that p =0.45 and n = 8.

Q: Assume that random guesses are made for six multiple choice questions on an SAT test, so that there…

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Q: Assume that random guesses are made for eight multiple-choice questions on an SAT test so that there…

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Q: Assume that random guesses are made for six multiple choice questions on an SAT​ test, so that there…

A: This will follow the Binomial distribution where n = 6, p = 0.3. The indicated probability for the…

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Q: Assume that 20.2​% of people have sleepwalked. Assume that in a random sample of 1508 ​adults, 348…

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Q: Assume that random guesses are made for eight multiple choice questions on an SAT test, so that…

A:

Q: Assume that random guesses are made for six multiple choice questions on an SAT test, so that there…

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Q: Assume that random guesses are made for seven multiple choice questions on a medical admissions​…

A: The probability of success​ (correct) is,  p=0.25 The number of trials is, n=7 Let X denote the…

Q: Assume that random quesses are made for seven multiple choice questions on an SAT test, so that…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Assume that random guesses are made for eight multiple choice questions on an SAT​ test, so that…

A:

Q: Assume that random guesses are made for seven multiple choice questions on an SAT test, so that…

A: I will use excel formula "=BINOM.DIST(x, n, p, FALSE)" to find the probability.  You can even use…

Q: Assume that random guesses are made for nine multiple choice questions on an SAT test, so that there…

A: Answer: Given that: p= 0.2 , n= 9 now will use Binomial probability P(X=x)=nx*px*(1–p)n–x,where…

Q: Assume that random guesses are made for nine multiple choice questions on an SAT test, so that there…

A: From the provided information, Number of trial (n) = 9 Probability of success (p) = 0.6 X~B (n = 9,…

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Q: Assume that random guesses are made for nine multiple choice questions on an SAT test, so that there…

A: Answer: Given that: p= 0.6 , n= 9 now will use Binomial probability P(X=x)=nx*px*(1–p)n–x,where…

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Q: Assume that random guesses are made for seven multiple choice questions on an SAT test, so that…

A: We have given that  Success of probability p = 0.5 Number of trials n=7 X~binomial ( n,p)

Q: Assume that random guesses are made for six multiple choice questions on an SAT​ test, so that there…

A: Givenn=6p=0.4x~Binomial(n=6,p=0.4)P(X=x)=(nx)×px×(1-p)n-x   ; x=0,1,...,n

Q: Assume that random guesses are made for seven multiple choice questions on an SAT test, so that…

A:

Q: Assume that random guesses are made for seven multiple choice questions on an SAT​ test, so that…

A: It is given that X ~B(7,0.25).The PMF of binomial distribution is given by,

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Q: Assume that random guesses are made for twelve multiple choice questions on an SAT test, so that…

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Q: Assume that random guesses are made for nine multiple choice questions on an SAT test, so that there…

A: According to the provided information, n=9 p=0.45 The pmf of the binomial distribution…

Q: Assume that random guesses are made for eight multiple choice questions on an SAT​ test, so that…

A: Let x follows binomial distribution with parameters n = 8 and p =0.4   The pdf of binomial…

Q: Assume that random guesses are made for seven multiple choice questions on a SAT test, so that there…

A: Given: n = 7 p = 0.35 x ~ Bin(7, 0.35) To calculate the indicated probability for the number of…

Q: Assume that random guesses are made for nine multiple choice questions on an SAT test, so that there…

A: It is given that n =9 and p = 0.6.

Q: A machine that manufactures automobile parts produces defective parts 13% of the time. If 7 parts…

A: Givenp=0.13sample size(n)=7Let "x" be the no.of parts are…

Q: assume that random guesses are made for 8 multiple choice questions on an SAT test, so that there…

A: From the provided information, Number of trials (n) = 8 Probability of success (p) = 0.65

Q: Assume that random guesses are made for six multiple choice questions on an SAT test, so that there…

A: Solution: Let X be the number of correct answers and n be the number of questions. From the given…

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A: a) The confidence level is 90%. Therefore, α = 0.10, α/2=0.05 and 1- α/2=0.95. Thus, zα/2 =1.645…

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Q: (b) Find and interpret the probability that a randomly selected fertilized egg hatches in less than…

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Q: Assume that random guesses are made for fifteen multiple choice questions on a medical admissions…

A: Assume that random guesses are made for fifteen multiple choice questions on a medical admissions…

Q: Assume that random guesses are made for eight multiple choice questions on an SAT test, so that…

A: The random guesses are binomially distributed. The sample size is 8. The proportion value is 0.25. X…

Q: Assume that random guesses are made for seven multiple choice questions on an SAT test, so that…

A: Obtain the probability that the number X of correct answers is fewer than 4.   The probability that…

Q: Assume that random guesses are made for six multiple choice questions on an SAT​ test, so that there…

A:

Q: Assume that random guesses are made for six multiple choice questions on an SAT fest, so that there…

A: Givenn=6p=0.2x~Binomial(n=6,p=0.2)P(X=x)=Cxn px(1-p)n-x  ; x=0,1,2....n

Q: Assume that 38.2​% of people have sleepwalked. Assume that in a random sample of 1540 adults, 629…

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Q: Assume that random guesses are made for seven multiple choice questions on an SAT test, so that…

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Q: Assume that when adults with smartphones are randomly selected, 39% use them in meetings or classes.…

A: probability mass function of B.D is = f ( k ) = ( n  k ) p^k * ( 1- p) ^ n-kwhere       k = number…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.