39.6% of consumers believe that cash will be obsolete in the next 20 years. Assume that 8 consumers are randomly selected. Find the probability that fewer than 3 of the selected consumers believe that cash will be obsolete in the next 20 years. The probability is. (Round to three decimal places as needed.)

Q: 60% of all students at a college still need to take another math class. If 4 students are randomly…

A: Givenp=0.60n=4x~Binomial(n=4,p=0.60)P(X=x)=(nx)×px×(1-p)n-x ; x=0,1...,n

Q: Assume that when adults with smartphones are randomly selected, 47% use them in meetings or classes.…

A: Binomial distribution: A discrete r.v. X taking values 0,1,2,3, …., n is said to follow a binomial…

Q: 77% of all students at a college still need to take another math class. If 5 students are randomly…

A: Binomial distribution:The binomial distribution gives the probability of number of successes out of…

Q: Assume that when adults with smartphones are randomly​ selected, 60% use them in meetings or…

A:

Q: A group of people were asked if they had run a red light in the last year. 206 responded "yes", and…

A:

Q: In a large population, 59% of the people have been vaccinated. If 5 people are randomly selected,…

A:

Q: Research has shown that approximately 1 woman in 500 carries a mutation of a particular gene. About…

A: The probability that women with this mutation develop skin cancer is 0.71.

Q: Assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes.…

A: Given, P(Adults using smart phones in meetings or classes)= p = 54% = 0.54 Sample size n = 5 exactly…

Q: Assume that when adults with smartphones are randomly selected, 42% use them in meetings or classes.…

A: Let X be the random variable from binomial distribution with probability (p) = 42% = 0.42 and sample…

Q: 8. 68% of all bald eagles survive their first year of life. Give your answers as decimals, not…

A: Probability of bald eagles surviving the beginning (first year) of life is 0.68.Sample size,

Q: Assume that when adults with smartphones are randomly​ selected, 47​% use them in meetings or…

A: given data P(use smartphone in meeting or class) = p = 0.47sample size (n) = 8x = no. of people use…

Q: at exactly 2 of them use their smartphones in meetings or classes.

A: Given that  39% of adults using smartphones in meetings or classes. P= 0.39 Random sample size (n) =…

Q: In a large population, 61% of the people have been vaccinated. If 5 people are randomly selected,…

A: From the given information, Sample size (n) = 5, Probability of success (p) = 0.61.

Q: 63% of all bald eagles survive their first year of life. If 44 bald eagles are randomly selected,…

A: I will use excel to solve this question.…

Q: group of people were asked if they had run a red light in the last year. 467 responded "yes", and…

A: Total people = 467 + 376 =843

Q: In a large population, 62 % of the people have been vaccinated. If 4 people are randomly selected,…

A: It is given that p=0.62 and n=4.

Q: 34% that a stock investement will end up in a total loss what is the chance that 1 of 3 investments…

A: It is given that, 34% that a stock investment will end up in a total loss. It means that the…

Q: 35% of all college students major in STEM (Science, Technology, Engineering, and Math). If 41…

A: Here,  and .The pmf of binomial distribution is,

Q: Find the probability of selecting three different orders from Pinky Pie’s Café. Round to four…

A: From the table total number of order is, 329+33+264+54+249+31+145+13=1118 total number of order from…

Q: Selected Technologies According to recent surveys, 60% of households have personal computers. If a…

A: It is given that sample size n is 151 and p is 0.60. If np ≥ 5 and n(1–p) ≥ 5 then it is appropriate…

Q: Customers enter a department store at random at an average rate of six per minute. Determine the…

A:

Q: 64% of all bald eagles survive their first year of life. If 49 bald eagles are randomly selected,…

A: The question is about discrete prob. distributionGiven :Prop. of all bald eagles survive their first…

Q: Assume that when adults with smartphones are randomly selected, 36% use them in meetings or classes.…

A: We have to find given probability..

Q: ssume that when adults with smartphones are randomly selected, 45% use them in meetings or classes.…

A: given data, p(use smartphones in meeting or classes)=p=0.45q=1-p=1-0.45=0.55n=8x= no. of smartphone…

Q: Assuming that the probability of failure for a large number of manufactured CPU chipset is 0.25.…

A: Answer is  0.091

Q: 63% of all bald eagles survive their first year of life. If 50 bald eagles are randomly selected,…

A: Note:- "Since you have posted a question with multiple sub parts, we will provide the solution only…

Q: A radioactive source emits particles at an average rate of one every 12   seconds. Find the…

A: Given problem Given that   A radioactive source emits particles at an average rate of one every 12…

Q: 76% of all students at a college still need to take another math class. If 4 students are randomly…

A: Let 76% of all students at a college still need to take another math class. i.e. p=0.76 and 4…

Q: Assume that when adults with smartphones are randomly selected, 57% use them in meetings or classes.…

A: Let "X" be the adults who use their smartphone in meeting or classes. I will use excel formula…

Q: ✅♦️♦️♦️♦️❎✅❎♦️

A: Step 1:40% of consumers believe that cash will be obsolete in the next 20 years.p=0.40 8 customers…

Q: A group of people were asked if they had run a red light in the last year. 239 responded "yes", and…

A: Given,number of people responded yes = 239number of people responded no = 178total number of people…

Q: 69% of all bald eagles survive their first year of life. If 31 bald eagles are randomly selected,…

A: Givenp=0.69n=31A random variable x~Binomial(n=21,p=0.69)P(X=x)=Cxn px qn-x           ;…

Q: Assume that when adults with smartphones are randomly selected, 43% use them in meetings or dlasses…

A:

Q: Assume that adults with smartphones are randomly selected, 48% use them in meetings or classes.  If…

A: Let "X" be adults who use their smartphones in meetings or classes.

Q: The probability is (Round to four decimal places as needed.)

A: It is given that the number of observations are independent with probability of success p = 45% =…

Q: A group of people were asked if they had run a red light in the last year. 210 responded "yes", and…

A: The probability of an event A can be found using the formula: PA=nFnT Here,  nF is the number of…

Q: pose that X and Y are random variables with the joint density function cx2 0 2).

A: Solution

Q: Assume that when adults with smartphones are randomly selected, 45% use them in meetings or classes.…

A: N=9P= 0.45

Q: 30% of all college students major in STEM (Science, Technology, Engineering, and Math). If 36…

A: Percentage of all college students major in STEM is 30% i.e., p=0.30. Sample size n=36