Example 2. In a class of 50 students, 40 speak Hindi, 20 speak both English and Hindi and all the students speak at least one of the two languages. How many students speak only English and not Hindi? How many students speak English?

Q: 15. Fit a straight line trend by the method of least squares. Year: 1987 1988 1989 1990 1991 1992…

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Q: 3. A hit at a major league baseball game flew along the following path from home plate. Height…

A: Given information: Horizontal distance(X) Height(Y) 10 15 75 78 110 103 190 136 230 140…

Q: 3. Below is the preference schedule for an election where the winner is determined by single runoff.…

A: Voters and choices given We have to calculate winner by using runoff method.

Q: Please answer asap and type your answer and do not copy from anywhere please There are important…

A: In identifying any disease among patients sensitivity and specificity are very important and most of…

Q: What is the probability of getting a Head when a coin is toss?

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Q: (2) Determine the areas under the normal curve given the mean of the distribution u = 80 and o =…

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Q: Design a Single Attribute Sampling Plan that will be close to the following requirements: AQL = P. =…

A: From the given information, α=0.05β=0.10AQL=pα=0.02LTPD=pβ=0.100   Below the conditions are…

Q: and you win the number of dollars shown on the ball. • Bag A contains four (4) balls in total:…

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Q: Example 20. The monthly salary of a person was Rs. 320 for each of the first three years. He next…

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Q: Suppose that during COVID the unemployment rate is 23% (i.e. the probability of being unemployed is…

A: We have given that  The random variable X i.e, unemployment follows Binomial distribution with…

Q: The following data is given: 3 4 14 12 9 _y 4 7 11 Use linear least-squares regression to determine…

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Q: Explain the method of simple averages of computing the indices ofseasonal variations.

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Q: Weekly Wages less than (Rs.) : 20 40 60 80 100 No. of workers 41 92 156 194 201 For the data given…

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Q: The extracurricular activities participated by members of the Mathematics Club at .. 'School are…

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Q: How many five letter words beginning and ending with a vowel without any letter repeated can be…

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Q: 2. A company wanted to assess the impact of R and D expenditure (X) on annual profit (). Following…

A: Given that    X Y X \cdot YX⋅Y X^2X2 Y^2Y2   9 45 405 81 2025   7 42 294 49 1764   5 41 205…

Q: 3. complete and detailed solutions to the following questions. a) How many students have a laptop or…

A: here given, 46 students uses smartphones  36 students uses laptop 34 students uses both    S= uses…

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

A: Solution

Q: Two fair dice are thrown. Find the probability that the product is a perfect square?

A: Two fair dice are thrown. Find the probability that the product is a perfect square?

Q: From a group of 7 men and 6 women, any five persons are to be selected to form a committee. In how…

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Q: Example – 9: Suppose that R(t) = t e¬9t, t > 0 i) What is the MTTF ? ii) What is the expression for…

A: Given Information: Consider the given Reliability function:     Rt=te-9t   t≥0

Q: 1. An engineer studied the relationship between the input and output of a production process.…

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Q: 18. Fit a straight line trend for the following data. 1997 1996 1998 1999 2000 Year: Per capita: 25…

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Q: Example 27. The distribution of monthly wages (in Rs.) of 40 workers in a factory is given below:…

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Q: Example 27. The distribution of monthly wages (in Rs.) of 40 workers in a factory is given below:…

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Q: 2. Given a standard normal distribution, find the area under the curve that lies (a) to the right of…

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Q: 12. Find the following table. 1. Fit a straight line trend by the method of least square. 2.…

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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: For questions 8 to 10: The following are the scores of the random students who took the Math…

A: We have given that,  The data set are :-…

Q: At an airline company, according to the records, the mean age of pilots is 36.2 years, and the…

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Q: Andrew and Bella either cycle to college or walk. One day the probability that Andrew cycles is 0.7…

A: Given information: P(Andrew cycles walk)=0.70 P(Bella cycles walk)=0.50 The two probabilities are…

Q: A coin is tossed tl probability of get

A: Given A coin is tossed three times, Hence the sample space (s)  = ( HHH,HHT,HTH,THH,TTH,THT,HTT,TTT…

Q: Find the appropriate critical F-value for each of the following using the F-distribution table. a.…

A: Given that  D=Degree of freedom  A) D1=20 , D2=9 , ? = 0.05 B) D1=9 , D2=24 , ? = 0.05 C) D1=20 ,…

Q: Example 17. A money lender lends Rs. 1500 and charges Rs. 240 as overall interest. T'he amount was…

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Q: The international club of a school has 90 members, many of whom speak multiple languages. The most…

A: n(Chinese)=48, n(Korean)=45, n(English)=36 N(Total)=12+9+8+7+15+13+20+6=90 n(Chinese and…

Q: In an experiment where 2 balls are drawn successively at random without replacement from a box…

A: The total number of balls is 2+3+2 =7

Q: 9. Fit a straight line trend by the method of least squares. Year: 1990 1991 1992 1993 1994 1995…

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

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Q: Example 3. A survey company investigated 800 car owners and found, 65- owned Maruti car and 300…

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Q: 5. Choose the best answer. Sammi plans on selling Christmas tree ornaments. She figured a profit of…

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Q: The mean of the Binomial distribution with parameters "n" and "p" is А. пр

A: Let X be the binomial random variable with parameters n and p. The probability mass function for X…

Q: The admission committee of AUCA enrolls 76% of those who took the exam. If the scores follow a…

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

A: Here total participants = 170

Q: A student committee is to consist of 2 freshmen, 4 sophomores, 3 juniors, and 5 seniors. If 11…

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Q: Binomial Probability Find the probability of each event. 1) A basketball player has a 60% chance of…

A: Given that ; P = 60%  n = 6 X = 3 By using binomial distribution we solve this problem.  Note:…

Q: What is the probability of grade 10 students joining basketball? *

A: Here use given venn diagram  Basketball = B Volleyball = A

Q: Example 16. Mr X saved Rs. 18500 in 10 years. In each year after the first he saved Rs. 200 more…

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Q: Explain the Graphic method of trend estimation in a time series and give its nmerits and demerits.

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Q: The population of the College of Business Administration has increased from 1,260 to 1,440 students.…

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