A study of an ant colony over a certain area showed an average of 1 infected ant per 20,000 ants. If a particular area has 50,000 ants, find the probability of selecting exactly 7 infected ones from that area? *
Q: Suppose a jar contains 13 red marbles and 36 blue marbles. If you reach in the jar and pull out 2…
A: We have total number of marbles in the jar = 13 red marbles + 36 blue marbles = 49. We can pull out…
Q: Suppose a jar contains 6 red marbles and 36 blue marbles. If you reach in the jar and pull out 2…
A: Solution
Q: The Colombia power company experiences power failures with a mean of 0.210 per day. Find the…
A: Given mean, λ=0.21 The probability distribution of Poisson distribution isPX=x=e-λλxx!
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A: We will use the complement rule of probability. P(at least 1 diamond) = 1 - P( no diamonds)
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Q: Suppose a jar contains 11 red marbles and 24 blue marbles. If you reach in the jar and pull out 2…
A: Step 1: It has been given that there are 11 red marbles and 24 blue marbles. Thus, in all there are…
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A: Given that on an average, 3 accidents occur per month, so the parameter, λ=3 Let X be a random…
Q: Suppose a jar contains 14 red marbles and 20 blue marbles. If you reach in the jar and pull out 2…
A: Given, no of red marbles=14 no of blue marbles=20 Total marbles=34 P(both are red.)=?
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A:
Q: Suppose a jar contains 18 red marbles and 21 blue marbles. If you reach in the jar and pull out 2…
A: Given,no.of red marbles=18no.of blue marbles=21Total no.of marbles=39
Q: Suppose a jar contains 18 red marbles and 28 blue marbles. If you reach in the jar and pull out 2…
A: Given data, Total number of red marbles = 18 Total number of blue marbles = 28 Total number of…
Q: Suppose a jar contains 5 red marbles and 31 blue marbles. If you reach in the jar and pull out 2…
A: Solution
Q: A recent study found that 40% of all people over age of 62 is selected. If a random sample of 5…
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Q: Suppose a jar contains 6 red marbles and 30 blue marbles. If you reach in the jar and pull out 2…
A:
Q: If two dice are rolled, compute the probability of rolling doubles (both dice show the same number…
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Q: Two cards are drawn at random from an ordinary deck of 52 playing cards one at a time with…
A: Number of total cards in a deck is 52. The number of drawn cards is 2.
Q: Suppose a jar contains 12 red marbles and 17 blue marbles. If you reach in the jar and pull out 2…
A: We have to find out given probabiity...
Q: Suppose a jar contains 13 red marbles and 35 blue marbles. If you reach in the jar and pull out 2…
A: Given problem Given that Suppose a jar contains 13 red marbles and 35 blue marbles. If you reach…
Q: Suppose a jar contains 17 red marbles and 32 blue marbles. If you reach in the jar and pull out 2…
A:
Q: From a group of 4 TV critics and 8 movie critics, we randomly select 5 people. If at least 2 movie…
A: Solution-:l We have 4 TV critics and 8 movie critics We randomly select 5 people If at least 2…
Q: Find the probability of obtaining exactly five purple jelly beans if they are selected with…
A: Let p be the probability of getting a purple jelly bean, then p = 20/(30+20) = 0.40 Let X denote the…
Q: Suppose a jar contains 17 red marbles and 38 blue marbles. If you reach in the jar and pull out 2…
A:
Q: Suppose a jar contains 5 red marbles and 11 blue marbles. If you reach in the jar and pull out 2…
A: Given that The jar contains Red marbles = 5 Blue marbles = 11 Total marbles = 5 + 11 = 16 We…
Q: Suppose a jar contains 648 red marbles and 292 blue marbles. If you reach in the jar and pull out 2…
A: A jar contains 648 red marbles and 292 blue marbles, there are totally 940 marbles. Two marbles are…
Q: There is an average of 4 accidents in a week on a major highway in the city. What is the the…
A: Given that Population Mean (\lambda)(λ) = 4 here we will use Poisson distribution with parameter λ…
Q: Suppose a jar contains 6 red marbles and 37 blue marbles. If you reach in the jar and pull out 2…
A:
Q: A hospital switch board receives an average of 5 emergency calls in 10 minutes interval. What is…
A:
Q: Suppose a jar contains 15 red marbles and 21 blue marbles. If you reach in the jar and pull out 2…
A: From the information, there are 15 red marbles and 21 blue marbles. Two marbles at random at the…
Q: The probability that a randomly selected 40-year-old female will live to be 41 years old is 0.988…
A:
Q: Suppose a jar contains 19 red marbles and 38 blue marbles. If you reach in the jar and pull out 2…
A: Given that a jar contains 19 red marbles and 38 blue marbles. Total marbles = 57 marbles
Q: Suppose a jar contains 6 red marbles and 26 blue marbles. If you reach in the jar and pull out 2…
A: GivenA jar contains No.of red marbles = 6No.of blue marbles = 26Total no.of marbles = 32
Q: If 3% of electric bulbs manufactured by a company are defective, find the probability that in a…
A:
Q: In one town, 78% of adults have health insurance. What is the probability that 8 adults selected at…
A: (6) Given Data: The percentage of adults have health insurance is: p=78%=0.78 The binomial…
Q: In a recent survey, 80% of the citizens in a community favored the building of a post office. If 15…
A: Solution
Q: Suppose a jar contains 19 red marbles and 37 blue marbles. If you reach in the jar and pull out 2…
A: According to the combination rule, if r distinct items are to be chosen from n items without…
Q: If 14% of active duty soldiers in the U.S. Army are women, find the probability that if three…
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Q: A recent survey of 1070 U.S. adults selected at random showed that 629consider the occupation of…
A: Probability: The ratio of the number of favorable outcomes to certain event and total number of…
Q: Suppose a jar contains 5 red marbles and 20 blue marbles. If you reach in the jar and pull out 2…
A: Introduction: According to the permutation rule, if r distinct items are to be chosen from n items…
Q: In a recent survey 72% of community favorite building a health center in their neighborhood and 14…
A:
Q: An average of 3 traffic accidents per month take place at a junction. So what is the probability of…
A: We have to find given probability.
Q: Suppose a jar contains 19 red marbles and 35 blue marbles. If you reach in the jar and pull out 2…
A: It is given that, A jar contain 19 red marbles and 35 blue marbles. Thus total number of marbles in…
Q: Suppose a jar contains 5 red marbles and 40 blue marbles. If you reach in the jar and pull out 2…
A: A jar contain 5 red and 40 blue marbles Total number of marbles is 5+40 =45. The first red marble…
Q: The probability that a randomly selected 40- year old female will live to be 41 - year old is 0.988…
A: Condition for Independence: If A and B are independent events, then P(A and B)=P(A)*P(B). From…
Q: Suppose a jar contains 6 red marbles and 38 blue marbles. If you reach in the jar and pull out 2…
A: HERE GIVEN , a jar contains 6 red marbles and 38 blue marbles now 2 marbles are selected at same…
Q: Suppose a jar contains 17 red marbles and 34 blue marbles. If you reach in the jar and pull out 2…
A: There are total (17+34)=51 marbles. We can pick any 2 marbles from 51 marbles in 51C2=1275 ways.…
Q: Suppose a jar contains 11 red marbles and 10 blue marbles. If you reach in the jar and pull out 2…
A: Given that the jar contains marbles of color; 11 red 10 blue Hence we have 11 + 10 = 21 marbles in…
Q: Suppose a jar contains 19 red marbles and 11 blue marbles. If you reach in the jar and pull out 2…
A: Given : 19 red marbles 11 blue marbles Total marbles =19+11 =30…
Q: Suppose a jar contains 9 red marbles and 37 blue marbles. If you reach in the jar and pull out 2…
A:
Q: A bag contains 3 yellow and 5 black balls, If 2 balls are drawn in succession without replacement,…
A:
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- A sample of 800 truck drivers from Minnesota were interviewed randomly and 316 answered they like tunnels. Determine if the sample evidence shows that less than half of the truck drivers like tunnels. Use α=0.05.a medical researcher says that less than 80% of u.s. adults think that healthy children should be required to be vaccinated. In a random sample of 200 US adults. 82% think that healthy children should be required to be vaccinated. At x=0.05, is there enough evidence to support the researcher's claimAn education researcher claims that at most 3% of working college students are employed as teachers or teaching assistants. In a random sample of 200 working college students, 4% are employed as teachers or teaching assistants. At x=0.01 is there enough evidence to reject the researcher's claim?
- Two different types of injection-moulding machines are used to form plastic parts. A part is considered defective if it has excessive shrinkage or is discoloured. Two random samples, each of size 300, are selected, and 13 defective parts are found in the sample from machine 1, and 8 defective parts are found in the sample from machine 2. Is it reasonable to conclude that both machines produce the same fraction of defective parts, using α = 0.05, find the value of zcalc? Please report your answer upto 2 decimal places.A certain drug can be used to reduce the acid produced by the body and heal damage to the esophagus due to acid reflux. The manufacturer of the drug claims that more than 92% of patients taking the drug are healed within 8 weeks. In clinical trials, 210 of 226 patients suffering from acid reflux disease were healed after 8 weeks. Test the manufacturers claim at the a=0.05 level of significanceWhen a man observed a sobriety checkpoint conducted by a police department, he saw 658 drivers were screened and 9 were arrested for driving while intoxicated. Based on those results, we can estimate that , where P(W )= 0.01368 denotes the event of screening a driver and getting someone who is intoxicated. What does P(W) denote, and what is its value?
- A magizine claimed that more than 55% of adults skip breakfast at least 3 days a week. To test this, a dietician selected a random sample of 80 adults and asked them how many days a week they skip breakfast. 45 of them responded that they skip breakfast at least 3 days a week. At a= .10, test the magazine's claimA research center claims that at least 27% of U.S adults think that the IRS will adult their taxes. In a random sample of 1000 U.S adults in a recent year 23% say they are concerned that the IRS will adult their taxes. At x=0.01, is there enough evidence to reject the center's claim?A machine randomly generates 1 of 9 numbers, 1...9, with equal likelihood. What is the probability that when John uses this machine to generate four numbers their product is divisible by 14? Express your answer as a common fract
- There are 10 M&Ms of which 6 are green, in a bowl. You select 2 of them and putting each back in the bowl after it is selected. Is this a binomial experiment? Why or why not?Suppose a single die is rolled 10 times. What is the probability of rolling a one, three ormore of the 10 times? Show all your work using fractions and answer with a reduced fraction.Do not use any decimals. If needed do not use a Pvalue to answer any problem. No credit will be given if a P value is used. Use only criticalvalues.At your high school, 42% of students are currently in a math class this semester. If you took a random sample of 12 students from your school and wanted to check conditions for normality, what would np=
