A large normally distributed population has a mean of 502 and a standard deviation of 25. If the sample size is 36, find the probability that the average will be between 496 and 508? Sketch the graph?

Q: 1. In a poll of 2,500 likely voters, 966 say that the Philippines spend too little on education.…

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Q: is the probability that a randomly selected student is from Luzon, given that the student will go…

A: Here AS PER NOTE GIVEN I HAVE CALCULATED Q.9

Q: Let's assume that your sample mean and sample standard deviation are the true population mean and…

A: We have given that Mean= µx̅ = µ = 2560Standard deviations (σx̅ ) =  634.60

Q: If the random variable X has an exponential distribution with rate parameter A = 11.42 then, given…

A: We have given that λ = 11.42 We know that, Var(X2)= E(X4)-(E(X2))2 Given that X~exp(11.42) So…

Q: Express the indicated degree of likelihood as a probability value.

A: here given, "You have one chance in ten of winning the race"

Q: (b) Let the continuous random variable X has probability density function as follows, rk(x+2)2, -2…

A: Solution

Q: r= 0.8 Find the regression equation:

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Q: A statistics practitioner took a random sample of 47 observations from a population whose standard…

A: Given that  Sample size n =47 Sample mean =97 Population standard deviation =32

Q: What is the probability of picking a black card or a jack if prior to selection all the black cards…

A: The objective is to find the probability of picking a black card or a jack. If prior to selection…

Q: Construct a Venn Diagram showing three overlapping events A, B and C. Shade the region corresponding…

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Q: Suppose that the time it takes an equipment to break down after being put to use is exponentially…

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Q: On a track and field team, 8% of the members run only long-distance, 32% compete only in field…

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Q: A rivet is to be inserted into a hole. A random sample of n = 15 parts is selected and the hole…

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Q: Question 1 Determine whether the value is a parameter or statistic Two thirds of the class are women…

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Q: 33 Given the z value, find the are under the normal curve for the given parameter: To the left of z…

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Q: For a random variable X, suppose that E[X] = 1 and Var(X) = 5. Then %3D (a) E[(2+ X)²] = (b) Var(2 +…

A: We have given that  For a random variable X, E(X) = 1 Var(X) = 5 E(X2) +  [E(X)]2  = 5 E(X2) = 4

Q: The standard deviation of X, denoted SD(X), is given by SD(X)% = Var(X). Find SD(aX + b) if X has…

A: Given  V(X)=σ2

Q: Determine the sample size necessary to estimate p for the following information.

A: here for 4th part  MOE  <= 0.01  confidence level = 99%

Q: Example Find the regression equation Y on X for the following data. X: 2 4 6. 8. Y: 15 20 25

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Q: 6. A sample of 5 fathers and their eldest sons gave the following data about their weight in Kgs.…

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Q: A Where do you get most of your information on video games and movies? Friends Game store internet…

A: What is Survey? Surveys is a method  to collect information about people’s perspective, opinion,…

Q: Construct a probability distribution for the data below and draw a histogram of the distribution.…

A: We know that the A probability distribution is a statistical function that describes possible values…

Q: Find 95% confidence interval for the population mean, if the sample size is 40, the sample mean is…

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Q: 3. Find rank correlation co-efficient and comment Marks in Mathematics (x): 60 70 50 40 80 90 85 96…

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Q: GIVES THE SERVICE LOCAL WEATHER 60% RAIN FOR EACH OF THE CHANCE OF NEXT TWO DAYs. POSSIBLE OUT COMES…

A: Given that  n=2 , p=60%=0.60 , q=1-p=1-0.60=0.40 X~Binomial(n=2,p=0.60)

Q: . If X is a normally distributed random variable with a mean of 235 Find the standard deviation…

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Q: 4. r=-0.2969 and n= 10 Find Σα

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Q: 33 How many distinguishable orderings of the letters of the word ASSESS are there? O 30 O 15 O 720

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Q: chosen, what is the probability that a member participates in choir or drama.

A: Here total participants = 170

Q: WHICH OF THE FOLLOWING ARE DISCRETE PROBABILITY DISTRIBUTION? IF IT IS NOT A DISCRETE PROBABILITY…

A: Identify the given are Discrete probability distribution or not

Q: How many different committees can be formed from 7 teachers and 49 students if the committee…

A: From the provided information, There are 7 teachers and 49 students and the committee consists of 2…

Q: A random sample of student applicants who took the college entrance test is desired to be known. The…

A: From the provided information, Population variance (σ2) = 27.4

Q: 3. Find rank correlation co-efficient and comment Marks in Mathematics (x): 60 70 50 40 80 90 85 96…

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Q: What is the probability that from 100 the number of profitable will be between 68 and 75…

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Q: Frample 1 Represent the following data diagrammatically. Cost price: 3.00 8.00 5.00 3.00 2.00…

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Q: (d) Find the conditional density function of Y, given Y, = Y1. , where p(Y2=Y -). (Enter your…

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Q: In a survey of 700 random households in a particular city in NCR, adults have been 2) asked if they…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: (ii) Marshal Edge Worth lies between Laspeyre's and Paasche's Index numbers.

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Q: 1. Mario has 45 red chips, 12 blue chips, and 24 white chips. What is the probability that Mario…

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Q: Carl's basketball shooting records indicate that for any frame, the probability that he will score…

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Q: 5. Calculate the regression equation for the following data and also computes Karl Pearson's co-…

A: We have given that,  No. Of students (X) :- 800, 600, 900, 700, 500, 400 No. Of passed (Y) :- 480,…

Q: You flip a fair coin n times and calculate the relative frequency probability of heads as  number of…

A: here use basic of rule of large number

Q: Find a 90% confidence interval for the population mean, if the sample size is 58, the sample mean is…

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Q: Find k such that P(k< T < 2.947) = 0.845 when T~t15

A: In this case, the random variable T follows t distribution with degrees of freedom of 15.

Q: 13 On a particular year, February has 29 days and February 1 occurs on a Sunday. How many Sundays…

A: We have given that on a particular year, February has 29 days and February 1 occurs on Sunday.

Q: Q. 30 Define Marshall-Edge worth price index.

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Q: A normal population has mean u 54 and standard deviation o = 7. What is the 84 th percentile of the…

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Q: - Determine the mode graphically from the following series: Week wages in Rupees Number of workers…

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Q: A new car that is a gas- and electric-powered hybrid has recently hit the market. The distance…

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Q: 1. A small study aims to see the correlation between having a tattoo and cases of depression. In one…

A: Expected for a probability distribution can be found x and its probability .