In an area having sandy soil, 40 small trees of a certain type were planted, and another 40 trees were planted in an area having clay soil. Let X = the number of trees planted in sandy soil that survive 1 year and Y = the number of trees planted in clay soil that survive 1 year. If the probability that a tree planted in sandy soil will survive 1 year is 0.5 and the probability of 1-year survival in clay soil is 0.4, compute an approximation to P(-4 sX - Y s 4) (do not bother with the continuity correction). (Round your answer to four decimal places.) A USE SALT 148

Q: Imagine a soldier in a trench during an armed conflict. In the enemy camp, inside another trench, is…

A: P(sniper) = 0.001 P(regular) = 0.999 P(hit |sniper) = 0.87 P(hit | regular) = 0.18

Q: Suppose that the link speed is 8 Mbps, the demand bandwidth of each active user is 1000Kbps. The…

A: Solution: From the given information, the link speed is 8Mbps and the demand bandwidth is 1000Kbps.…

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A: Given: 50% of all tune-ups are done on four-cylinder automobiles. 20% on six-cylinder automobiles…

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A: The central limit theorem studies the nature of the sampling distribution of the sample mean when…

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A: Paired t-test statistic results:For testing whether the new energy drink increase an individual’s…

Q: A viral infection is spread by contact with an infected person. Suppose that an infected person has…

A: Here we want to find minimum number of cases for higher than 25%

Q: Find the probability of choosing two numbers from 0 to 1 such that sum of their square is less than…

A: Formula: Probabolity=(no of  possible out come/Total no of out come)

Q: Consider the following UQDS 0.41 0.41 0.41 0.41 0.43 0.43 0.58 0.79 0.79 0.81 0.81 0.81 1.02 1.04…

A: The data is given as-…

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A: The objective of this question is to determine whether the strength of an alloy can be improved by…

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A: Binomial distribution is discrete distribution that deals with the probabilities of success and…

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A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Suppose that the random change in value of a financial asset is X over the first day and Y over the…

A: The variance of X+Y is calculated asVarX+Y=VarX+VarY-2CovX,Y

Q: For 30 recent Academy Award ceremonies, ages of Best Supporting Actors (x) and ages of Best…

A: Solution: For 30 recent Academy Award ceremonies, ages of Best Supporting Actors (x) and ages of…

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A: Here, we need to perform a ANOVA test, to check the equality of the average number of users of all…

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A:

Q: Assume that all variables are approximately normally distributed.  Help me with 13 please.

A:

Q: A battery has an expected life (miles) as follows N(300000,10000). If there are 100000 cars in the…

A: Let X be the battery has an expected life X~N(300000,10000)

Q: The grades of a sample of 9 students on a prelim exam (x) and on the midterm exam (y) are shown in…

A: Let X denote the prelim exam Let Y denote the midterm exam Calculation:

Q: Choose two points randomly from the unit interval. Find the probability that both points are closer…

A:

Q: A study of the isopluvial maps revealed that at Najaf Al-Ashraf a maximum rainfall depth of 175 mm…

A: Solution: Expected number of maximum rainfall depth of 175 mm in 18 hr in 100 years = 1 Expected…

Q: give the first Q1 for this d

A: Arrange the data as follows: 2   60   70   70   72   72   75   76   78   78   79   80   80   81   84…

Q: If 25% of the oranges produced by a farm is defective in a random sample of 20 oranges, then if the…

A: Given 25% of total 20 oranges are defective, To calculate (X>3) if X represents the number of…

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A:

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A: Given: the arrival time of trucks in exponential with mean= 20 minutes unloading time per truck is…

Q: A physician wants to see if there was a difference in the average smokers' daily cigarette…

A: To find: What is the correct p-value?

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A: It is given that P(X = 2) =(3/2) P(X = 1). That is,

Q: Biologists in Minnesota are interested in determining if there is a difference in the invasion rate…

A: The hypothesis is H0: p1=p2 vs Ha: p1≠p2 and the p-value is 0.0015.

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A: We have given difference in sleeping hours for two groups and we have to find the t obtained and p…

Q: suppose the lengths of human pregnancies are normally distributed with µ= 266 days and o = 16 days.…

A: We have to find given proportion values..

Q: For 30 recent Academy Award ceremonies, ages of Best Supporting Actors (x) and ages of Best…

A: Solution: From the given information, the regression equation is

Q: If u = x1x2 + x2X3 + X3X1, then find the relative percentage error in the computation of u at x1 =…

A: In the given question we have to calculate the relative percantage error in computation of u where…

Q: H(x) = 3 + 4* (a) What is the net change in the height of the plant over the first 2 months after…

A:

Q: If the iron cutting machine in a factory works continuously for a certain period of time under the…

A: a part n = 9 x¯=14+26+18+29+12+19+22+30+199=1899=21…

Q: "Space Mountain", a classic attraction at Disneyland Park, attracts many tourists to take a ride.…

A: The maximum number of tourists waiting in a queue can be calculated by measuring the maximum…

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.