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=0.6. 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) =D (Round to four decimal places as rveded.)

Q: Find the probability a randomly selected z-score is more than -1.31. Round your result to 4 decim.…

A: Probability that a randomly selected z score is more than -1.31  P(Z&gt;-1.31)  The normal…

Q: Assume that random guesses are made for eight multiple choice questions on an sat exam so that there…

A: Indicated probability for the number of correct answers ( x denotes for correct answers) :

Q: During the first 27 days of the new program, the manager determined that 5 % of customers were not…

A: Given data During the first 27 days of the new program the manager determined that 5% of customers…

Q: Assume that random guesses are made for nine 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…

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

Q: A machine that manufactures automobile parts produces defective parts 14% of the time. If 7 parts…

A:

Q: Assume that 32.4​% of people have sleepwalked. Assume that in a random sample of 1517 ​adults, 530…

A: We have to find given probability...

Q: United States Centers for Disease Control and Prevention (CDC) found that 17.9% of women ages 12–59…

A: Given Data population proportion,p = 0.179 sample size n = 1000

Q: Assume that 20.2 % of people have sleepwalked. Assume that in a random sample of 1452 adults, 303…

A: From the given information,Total number of adults = 1452The proportion that person has sleepwalked =…

Q: uppose that the lifetime X (in hours) of a certain type of flashlight battery is a random variable…

A: Given Suppose that the lifetime X (in hours) of a certain type of flashlight battery is a random…

Q: Assume that random guesses are made for 2 multiple-choice questions on a test with 5 choices for…

A: Introduction:If X ~ Bin (n, p), then the probability mass function of X is:p (x) = (nCx) px (1 – p)n…

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

A: Given: Number of trials n=6 Probability of success p=0.65

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: Find the indicated probability for the number of correct answers.   Find the probability that the…

A:

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 nine multiple choice questions on an SAT test, so that there…

A: GivenProbability of success or guessing correct p = 0.5total number of questions or number of trails…

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

A:

Q: uppose the time it takes a nine-year old to eat a donut is between 0.5 and 4 minutes, inclusive. Let…

A:

Q: A survey of cars on a certain stretch of highway during morning commute hours showed that 55% had…

A: The random variable X has the following probability mass function:

Q: A random sample of n = 16 scores to selected from a population whose mean = 219 and standa sample's…

A: Given information: n=16μ=219σ=18

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

A: We have to find probability.

Q: The brand name of McDonald's has a 95% recognition rate. If a McDonald's executive wants to verify…

A: Let X be the number of consumers recognize the McDonald's brand name which follows binomial…

Q: The reaction of an individual to a stimulus in a psychological exper- iment may take one of two…

A: The confidence level is 90% Therefore, α = 0.10, α/2=0.05 and 1- α/2=0.95. The margin of error is…

Q: The number of buses pass by on the street in any 30 seconds interval under specified conditions…

A:

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…

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

Q: Based on a poll, 60% of adults believe in reincarnation. Assume that 7 adults are randomly selected,…

A: Answers are   (a)  binompdf(7,0.6,6) = 0.131   (b) binompdf(7,0.6,7)  = 0.028   (c)…

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

A:

Q: Assume that random guesses are made for 12 multiple choice questions on an SAT test, each with…

A:

Q: Assume that a procedure yields a binoniamal distribution with n=8 trials and a probability of…

A:

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

A:

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

A: Given: n = 7 p = 0.45 Find the indicated probability that

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 seven multiple choice questions on a medical…

A: It is given that assume random guesses are made for seven multiple choice questions on a medical…

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

A: Introduction:If X ~ Bin (n, p), then the probability mass function of X is:p (x) = (nCx) px (1 – p)n…

Q: Assume that 30.1​% of people have sleepwalked. Assume that in a random sample of 1510 ​adults, 468…

A:

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: The reaction of an individual to a stimulus in a psychological experiment may take one of two forms,…

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…

Q: The United States Centers for Disease Control and Prevention (CDC) found that 17.9% of women ages…

A: From the provided information, Sample size (n) = 1000 17.9% of women ages 12-59 test seropositive…

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

A:

Q: A sample of 820 adults showed that 31 of them had no credit cards, 178 had one card each, 98 had two…

A: From the sample of 820 adults, 81 had three cards each and (31+178+98+90+342)= 739 had other than…

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

A:

Q: The Food Marketing Institute shows that 16% of households spend more than $100 per week on…

A: Given data,      P=0.16      n=800  1. σP =P 1-Pn

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: In a random sample, 126 of 400 persons given a flu vaccine experienced some discomfort. what can…

A: Given,n=400x=126p^=xn=126400=0.3151-p^=1-0.315=0.685α=1-0.95=0.05α2=0.025Z0.025=1.96

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

A: Given datan = 9p= 0.4Applying Binomial theoremProbability of x success out of n trial is given by

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…

A:

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

A: In question Given that, random guesses are made on SAT test for six multiple choice questions with 6…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.