From the consulting company records 70% of the stocks are profitable over the next year. What is the probability that from 100 the number of profitable will be between 68 and 75 inclusively?

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

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A: We have to given that there are PINs made from exactly three symbols chosen from the 26 letters of…

Q: b. P[2570 a]= 0.508 Z-score: 9.78 P[Za]= 0

A: The probability value is calculated by the likelihood of the happening. The z score is calculated by…

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: 2.) Use the following data which represents the population of the 20 most populous cities in the…

A: For the given data construct frequency distribution

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: 2. Calculate the quartile deviation and its co-efficient from the following data, С. .: 10-15 15-20…

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Q: A sample of size 60 will be drawn from a population with mean 31 and standard deviation 6. Use the…

A: Given that  Mean=μ=31 Standard deviation=σ=6 n=60

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Q: For a hypothesis test of the claim that the mean amount of sleep for adults is less than 6 hours,…

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Q: a) The two distributions have the same shape. answer: b) The two distributions are centered at the…

A: here given, here for first distribution , mean = -8 and standard deviation  = 14 for second…

Q: Q.5 From a lot of 2000 units, 20 units are drawn as a sample. To accept the lot, not more than 2…

A: The following information has been given: The lot size is N=2000. The sample size is n=20. The…

Q: 2. Find rank correlation co-efficient for the following data and give your comments. Marks in…

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Q: A 35 20 15 30

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Q: 34 Given the z value, find the are under the normal curve for the given parameter: To the right z =…

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Q: Define the density function of X by f(x)=2 for x 1,2,3... and f(x)=0 otherwise. Find the moment…

A: Var(X)=E(X2)-(E(X))2

Q: 11. Answer the following 1. n= 6 and 'r' = 0.42857. Find Ed %3D

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Q: 3. Explain in your own word and give an example of Negatively Skewed and Positively Skewed.

A: We know that , Skewness is a measure of the symmetry of a distribution. Either the distribution is…

Q: nplify the following using De Morgan's and justify your answers using Venn Diagram a. ((A' n B)' U…

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Q: Use rank correlation co-efficient to determine which pair of judges has the nearest ap- 3 8. 4 7…

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Q: A student must take 4 electives from a set of 10 electives. How many ways can the student choose the…

A: Solution-: Given: n=10, r=4 We want to find how many ways can the student choose the electives.

Q: a. WHAT IS THE EXPECTED VA LUE OF PLAY ING THIS GAME? b. How MUCH CAN THE EVENT ORGANIZERS 500…

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Q: At 5% significance level, the probability of accepting H0 when the real value of the population mean…

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

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

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Q: Find the value of expression below. G) 2 55 O 110 O 19,958, 400

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Q: A mail order company has a 7% success rate. If it mails advertisements to 636 people, find the…

A: Givenp=0.07n=636let "x" be no. of getting salesx~Binomial(n=636,p=0.07)P(X=x)=(nx)px(1-p)n-x  ;…

Q: Example 2 The following table represents no of Road accident in Bangalore city. Years: 1995 1996…

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Q: How many different 5-letter words can be made a. if the first letter must be C, Z, T, or L and no…

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Q: The spinner on the right is spun. Find the probability that it is an even number or a number greater…

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Q: Given a mean and standard deviation of the base 10 logarithms of −0.43 and 0.12, respectively, find…

A: The intensity of rainfall is a measure of the amount of rain that falls over time. Let a random…

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Q: 1 Calculate the quartile deviation and its co-efficient. Time in minutes Frequency 5-99 10 10-14.9…

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Q: A 1. It is known that if C = : then the pdf of C is given by B' fc(e) = | 16| fa.B(cb, b) db. Use…

A: Given that Z~N0,1 and Y~χ2n with Z and Y are independent.

Q: r= 0.8 Find the regression equation:

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Q: Let X and X1, X2, ... be random variables. Then |Xn – X| 1+|X, – X| X, 4 X as n →∞ → E 0 as n → 0.

A: Solution: From the given information, X and X1, X2 …be random variables.

Q: S) Number of televisions per home. Us the histogram below to answer the following questions.…

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Q: The extracurricular activities participated by members of the Mathematics Club at : Cchool are shown…

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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.…

Q: A new drug is being trialled to help reduce heartburn in people over the age of 60. Nine individuals…

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Q: 7. Calculate the rank correlation. 66 65 67 68 69 70 71 72 X: 67 68 69 72 78 80 82 85 y: H with…

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Q: Define the residual method of estimating irregular components in a time series ?

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Q: For an investigation into alcohol drinking habits, a random sample of men aged 16 to 90 is obtained.…

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Q: 4.) Starting Salaries. Starting Salaries (in thousands of dollars) for social workers with a…

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Q: 4 -8 = 0 Example 51. Find 5 6 |-4 x 7

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Q: Define the residual method of estimating irregular components in a time series ?

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Q: a. In how many ways can the letters of the word 'CORPORATION' be arranged so that the vowels always…

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Q: OA. X is not a Binomial random variable. OB. X ~ Bin(3, 1/3) OC.X - Bin(6, 1/3) OD. X ~ Bin(9, 1/3)…

A: We have given that  The investment manager have nine projects at hand, 3 are domestic projects and 6…