A car hire firm has two cars which it hires out day by day. The number of demands for a car on each day is distributed as a Poisson variate with mean 1.5. Calculate the proportion of days on which (i) Neither car is used (ii) Some demand is refused.

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Q: When is Rank correlation coefficient preferred to Karl Pearson's method? In a bivariate sample, the ...

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Q: The proportion of all customers at Pizza Hut who eat on-site is 75 percent. In a sample of 100 patro...

A: Given that  n=100 , p=25%=0.25  , q=1-p=1-0.25=0.75 σp=√(p(1-p)/n)=√((0.25*0.75)/100) p0~Normal(μp=0...

Q: When taking a 18 question multiple choice test, where each question has 5 possible answers, it would...

A: Given :  n = 18 p = 1/5 = 0.2    

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Q: Which among the values is approximately equal to P(0.99 < Z < 1.5)? a. 0.7333 b. 0.0943 c. 0.7721 d....

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Q: Q. 6. Calculate Karal Pearsons co-efficient of correlation from the following given data. (i) Sum of...

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Q: Four experts rank the five applicants in an interview as follows. APPLICANTS Experts 1 2 4 5 A 1 2 4...

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Q: (a) How many standard deviations above the mean did Sophia score on the Verbal Reasoning section?  ...

A: Here AS  PER POLICY I HAVE CALCULATED FIRST 3 SUBPART PLZ REPOST FOR REMAINING 

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Q: 4. If a boxer is listed as weighing 17 stone, how many pounds is that?

A: Given : Boxer is listed as weighing 17 stone Pounds =? 

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Q: n. The card is replaced in the pack and B A draws a card from a pack of n cards marked 1, 2, draws a...

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Q: Activity 2. The learners will perform the activity below to check their understanding of the lesson....

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a...

Q: How many five digit numbers containing each of the digits 1,2,3,4,5 exactly once are divisible by 24...

A: * SOLUTION :-  From the given information the calculation as follows .  

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Q: The average marks obtained in the annual examination is 65 with the S.D. of 10. The top 5% of the st...

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Q: The following data give the numbers of orders received for a sample of 30 items at the Time-saver Ma...

A: Giventhat The data are 34,44,31,52,41,47,38,35,32,39,28,24,46,41,49,53,57,33,27,37,30,27,45,38,34,46...

Q: Q. 6. Marks secured by 35 students of M.Com. Previous in a test are given below: 55, 45, 60, 65, 70,...

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Q: For the following set of scores: Original Data X Y 4 5 6 5 3 2 9 4 6 5 2 3 ∑X ...

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Q: 8. A recipe calls for 12 tablespoons of molasses. How many fluid ounces is that?

A: Given : A recipe calls for 12 tablespoons of molasses. We have to calculate fluid ounces 

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Q: Example 2-2. Calculate the mean for the following frequency distribution : Class interval : 0-8 8–16...

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A: It is required to test if the probability of "yes" is same for all the four surveys or not.

Q: answer e f g h i

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Q: Find the probability X = 10. %3D Find the probability X = 11.

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Q: For the following data obtain (i) mean, (ii) median, (iii) mean deviation from median, and (iv) the ...

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Q: Evaluate A? sin (x + h) E sin (x + h) sin (x + h) + where interval of differencing is h.

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Q: Derive that the lower bound of one-sided confidence interval is L = 0 – CaSE[@].

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Q: Judge and Cable (2010) report the results of a study demonstrating a negative relationship between w...

A: We have given that  Weight 4 5 3 2 1 3 1 5 Income 151 88 52 73 49 92 56 143 Then we have to ...

Q: Q3. Given the Venn Diagram and its Carroll Diagram: wwm w Prob. Venn Diagram Incomplete Carroll diag...

A: The diagram shows the probability Venn diagram and Carrol diagram.

Q: 3. Following is the distribution of marks in law obtained by 50 students: Marks (more than) No. of s...

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Q: Assume that a sample is used to estimate a population mean u. Find the 98% confidence interval for a...

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Q: 700 and a standard deviation of 100 points. Sammy's score was higher than 93.7% of all participant s...

A: Given:    let x be the score follow normal distribution with mean mu=700 and standard deviations=100...

Q: 2014 Top Albums (Based on U.S. sales) Of all of the U.S. album sales, album 1 accounted for 22% of s...

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Q: Urn 1 contains 7 red balls and 1 black ball. Urn 2 contains 3 red balls and 1 black ball. Urn 3 cont...

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Q: 1. Which of the following is NOT a probability sampling technique? A. pure random sampling C. system...

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Q: What do you understand by independence of attributes ? Give a criterion of independence for attribut...

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Q: The average score on a statistics test was 2.52 with a standard deviation of 0.75. The teacher suspe...

A: Given : E(x) =2.52, SD(x) =0.75 Var(x)=0.752 =0.5625 New score is y=ax+b Such that : E(y) =3.58 SD(y...

Q: The school board is trying to evaluate a new mathprogram introduced to second-graders in five elemen...

A: Given: 52 27 35 44 55

Q: Find the area under the standard normal curve, which lies (a) To the left of Z 0.94 (b) To the right...

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Q: What is the correlation between happiness and stress?  Enter your value with three decimal places; d...

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Q: Rank correlation co-efficient : The marks secured by 10 student of B.Com. in two subjects Economic a...

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Q: Calculate weighted arithmatic mean from the following: Monthly Salary: 3700 3000 2200 1500 1050 Stre...

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