a) It is known from past records that 10% of passengers arriving at Islamabad International Airport are not properly vaccinated against yellow fever. 8 passengers are randomly selected to check whether are vaccinated. What is the probability that 2 are not vaccinated?

Q: What is the probability that a random variable will have values of three or less?

A: Given that  Probability mass function  X 0 1 2 3 4 5 6 7 8 9 10 P(x) 0.06 0.14 0.16 0.14 0.12…

Q: Find the probability of getting 2 to 5 diamonds using normal distribution.

A:

Q: What is the probability of getting at least 7 heads when 20 coins are tossed?

A: Given that, 20 coins are tossed.

Q: 2. In a factory that produces pieces of ready-made concrete, if the percentage of producing…

A: Given,n=5p=0.6q=1-p=1-0.6=0.4X=no.of defective piecesX~Binomial (n=5 , p=0.6)P(X=x)=nx px qn-x    ;…

Q: The average number of people who die in a month from a rare disease in a city is 4. What is the…

A: The average number of people who die in a month from a rare disease in a city is 4.

Q: There's a rare disease that occurs in 1% of the population. There's a test that yields positive…

A: From the given information, Consider, D be the event that shows the population having rare disease.…

Q: If a seed is planted, it has a 95% chance of growing into a healthy plant. If 9 seeds are planted,…

A:

Q: In a study of blood donors, 125 were classified as group O and 195 had a classification other than…

A: The objective of this question is to find the probability that a blood donor will have group O…

Q: If a seed is planted, it has a 75% chance of growing into a healthy plant. If 8 seeds are planted,…

A: p=0.75, n=8

Q: If a seed is planted, it has a 85% chance of growing into a healthy plant. If 7 seeds are planted,…

A: The random variable X is the number of seeds that don't grow The probability of the seed growing is…

Q: Hospital records show that 75% of the patients will recover from a certain disease.             i.…

A: Givenp=0.75n=6x~Binomial(n=6,p=0.75)P(X=x)=Cxn px (1-p)n-x ; x=0,1,2....n

Q: An insurance company needs to develop a new bankruptcy policy in a new city. It was observed an…

A:

Q: What is the probability that a randomly selected score exceeds 1170?

A: Let X be the SAT score ( for verbal and math).It is given that X has normal distribution with mean…

Q: 10 years ago, high levels of lead in blood put 83% of children at risk. Now only 8% of children are…

A: Introduction: Denote p as the true population proportion of children who were at risk 10 years ago,…

Q: probability of drawing a heart card from a standard deck of playing cards?

A: there are 4 suits of cards, each suit have 13 cards

Q: A die was rolled 16 times, what is the probability of rolling a number greater than 4 seven times.

A: Given that  n=16 , p=2/6=1/3  X~Binomial(n=16,p=1/3) X=Number of time the number greater than 4…

Q: 5. A study indicates that 4% of American teenagers have tattoos. You randomly sample 30 teenagers.…

A: The binomial distribution probability is:P(X=x)=nCx​px(q)n−xwhere ::: x represents the total number…

Q: A labor statistician claims that 6% of the labor forces will be laid off likely  to pandemic impact.…

A: Solution: According to the labor statistician's claim, 6% of the labor forces will be laid off…

Q: In a study done in my chicken coop, 82% of my birds enjoy eating earwimgs. Chose 7 at random. FIND…

A: The provided information are: Probability of success (p)  = 82% = 0.82 Number of birds chosen (n) =…

Q: The centers for disease control reported that 16% of college aged individuals used vapes in…

A: Given information Probability of using vapes = 0.16 No of individuals n = 750 Probability that less…

Q: manufacturer of aspirin claims that the proportion of headache sufferers who get relief with their…

A: Given data,Probability of success is p=63.8%=0.638If n=430P(X<58.4%)=?

Q: What is the probability that, in a simple random sample of 500 in the US, fewer than 30 have blood…

A:

Q: Let's say that 82% of people have Type O blood.  If 3 randomly selected people donate blood, what is…

A: Givenp=0.82n=3x~Binomial(n=3,p=0.82)P(X=x)=(nx)×px×(1-p)n-x  ; x=0,1,...,n

Q: Recently, the top web browser had 57.41% of the market. In a random sample of 200 people, what is…

A:

Q: The National Centre for Health Statistics reported that of every 883 deaths in recent years, 24…

A: The objective of the question is to find out the probability that a particular death is due to an…

Q: If a seed is planted, it has a 75% chance of growing into a healthy plant. If 8 seeds are planted,…

A:

Q: The risk of a hematoma among alcoholics without cirrhosis of the liver is 24%. Suppose we observe 7…

A:

Q: recent survey found that 70% of all adults over 50 wear sunglasses for driving. In a random sample…

A: We have given that  Sample size n = 10 Success of probability p= 0.70 X~binomial ( n , p )

Q: If the chance of suffering from occupatinal hazards is 25%, what is the probability that out of…

A:

Q: A study shows that 46% of teachers have gone through a lot of stress since April, due to the…

A: We have to find out given probabiity..

Q: If a seed is planted, it has a 60% chance of growing into a healthy plant. If 8 seeds are planted,…

A: We have given that  Number of trials n=8 Success of probability p =0.40 Failure of probability q=…

Q: A manufacturer of aspirin claims that the proportion of headache sufferers who get relief with just…

A: Givenproportion(p)=0.634sample size(n)=430Mean(μp^)=p=0.634standard…

Q: It has been recorded that 40% of stores in a region successfully reach the annual sales record.…

A:

Q: Find the probability of getting three or more cars that fail among six cars tested

A: Solution: To find: The probability of getting three or more cars that fail among six cars tested.?

Q: Breast cancer occurs in 2% of all American women. Mammograms used to detect breast cancer typically…

A:

Q: What is the probability of throwing a three with a single die 4 times out of 5 trials?

A:

Q: Privacy is a concern for many users of the Internet. One survey showed that 59% of Internet users…

A: Let p be the probability of concerned about the confidentiality of their email Based on this…

Q: In a family of five children, what is the chance that there are

A: Given information: The family of five children. P(boy)=P(girl)=1/2.

Q: If 70% of a population is vaccinated, and the hospitalization rate is 5 times higher for an…

A: Dear student, If you find this solution helpful please upvote ? it.

Average

In mathematics, everyone must have heard the term average in one place or other. Almost all types of calculation require taking out an average. In everyday life, the term is used for denoting a certain amount that can be said to be a typical quantity for multiple people or objects. In other words, if a group of people possesses a certain object, then the average gives us an idea regarding the quantity of the object possessed by each person. However, this is solely based on mathematical calculation. It is important to note that most people will not strictly have the average value in a group.