ind a. P (A) b.P (B) c.P (A n B)

Q: Marks obtained by 9 students in statistics are given 52, 75, 40, 70, 43, 40, 65, 35, 48. Calculate t...

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Q: Directions: Write the probability distribution for each discrete random variable. 1. Construct the p...

A: Given Three children in the family  

Q: At what level are the following variables measured? _______________ 1. The scores of students in a s...

A: Solution-: At what level are the following variables measured?  

Q: A regression line for predicting test scores has an r.m.s. error of 8 points. When this result is us...

A: Given that, Root mean square error = 8 points

Q: Example 6-19. From a point on the circumference of a circle of radius 'a', a chort drawn in a random...

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Q: Calculate Standard deviation of the following data : No. of Employees : 10-19 20-29 30-39 40-49 50-5...

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Q: Activity 1 Identify the regions under the normal curve of the following standard normal values using...

A: Given that  We have z values  We have to find region under normal curve using given Z standard norma...

Q: Suppose, a telephone exchange becomes very busy at a certain time of the day which is known as a bus...

A: Given,p=0.07q=1-pq=1-0.07=0.93A random variable X~Geometri distribution(p=0.07)P(X=x)=0.070.93x-1   ...

Q: Listed is a series of experiments and associated random variables. In each case, identify the values...

A:  a) X- number of questions answered Correctly The values of the random variables can assume is 0,1,2...

Q: The random sample of 5 school students is selected and their marks in statistics and accountancy are...

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Q: A nationwide survey was conducted to determine the standard hemoglobin and hematocrit values of adul...

A: Two scenarios are given and objective is to find the best sampling scheme for each scenario.  

Q: 3. Researchers are interested in estimating the average number of credit hours Freshmen take per sem...

A: Given data A random sample of 50 freshmen is obtained The average of hours taken per semester was 14...

Q: In a 2005 study, researchers reported that the average weight of adults aged 20 years and older is 1...

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Q: There are 8 players on an amateur basketball team. They are practicing their free throws by having e...

A: Given Information: Total Number of players = 8 "X" represents a missed free throw and "O" represents...

Q: How many combos can Isaiah choose from?

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Q: In a sample of 100 Planter's Mixed Nuts, 19 were found to be almonds. (a) Construct a 90 percent con...

A: Given n=100 X=19

Q: A. Use Empirical rule to complete the following table. Write on the respective column the range or i...

A: Empirical Rule : The empirical rule may be a shorthand utilized in statistics to recollect p.cage|th...

Q: n-x When n=370 and x=112, what is the value of ĝ? Use: ĝ %3D O 0.30 O 0.70 O 0.65 O 0.35

A: Given information- n = 370 x = 112 We have to find the value of q^.

Q: In a shipment of 25 hard disks, six are defective. If five of the disks are selected at random, what...

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Q: In a related-samples t test, the null hypothesis posits that the mean of the sampling distribution i...

A: Here related sample t test is used to compare  paired data

Q: PROBLEM 1 Find the normal stress of members CD and CE of the truss shown. Cross sectional area of th...

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Q: Example 12. Find the average marks of students from the following table : Marks No. of students Mark...

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Q: For a distribution it has been found that the first four moments about 27 are 0, 256, -2,871 and 1,8...

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Q: If a smoker is selected at random, what is the probability that the individual has diabetes? What is...

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Q: (b) Estimate the percentage of customer accounts for which the number of days is between 19 and 39. ...

A: Let X be the random variable from bell- shaped (normal) distribution with average or mean (μ)=29 and...

Q: Calculate the standard deviation from the following data : Size of item Frequency Size of item Frequ...

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Q: Is this probability function valid? Explain. а. b. What is the probability that it takes exactly two...

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Q: Hypothesis testing is used in business to test assumptions and theories. These assumptions are teste...

A: A production manager randomly samples a batch and measures the following weights:  Weight, (lbs) 45....

Q: b) Rachel received the following scores on the midtermn and final examinations in his introductory p...

A: Introduction :-  Given :-  We are asked two questions on it.

Q: A game of “Doubles-Doubles” is played with two dice. Whenever a player rolls two dice and both die s...

A: Given the game of “Doubles-Doubles” is played with two dice.

Q: From the following series find the first four Moments about an arbitrary value and convert them into...

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Q: (a) Estimate the percentage of amounts that were less than $40.71. Round the answer to one decimal p...

A:  In a recent survey of 660 working Americans ages 25-34, the average weekly amount spent on lunch as...

Q: Theorem. Any standard deviation of order 'p' may be expressed in terms of a standard deviation of or...

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Q: Suppose you draw two coins from a bag containing 10 quarters, 8 dimes, 6 nickles, and 4 pennies. Fin...

A: Given Total = 10+8+6+4 = 28 draw 2 coins  with replacing Find P( nickle than a penny ) =?

Q: In a given race the odds in favour of four horses A, B, C, D are 1:3, 1:4, 1:5 and l:6 respectively....

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Q: 4. x 125, µ= 105, o=8, z = ? z 1.11, u= 145, o= 5. 20, x =?

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Q: Using the 68-95-99.7 Rule, also called the Empirical Rule, estimate what percent of the graph is sha...

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Q: Choose the most appropriate completion of the sentence. In order to indicate a strong correlation be...

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Q: Lunch break: In a recent survey of 660 working Americans ages 25-34, the average weekly amount spent...

A: Given : Let X be a r.v Mean (μ) = 43.79 Standard deviation (σ) = 3.08    

Q: Lunch break: In a recent survey of 655 working Americans ages 25 - 34, the average weekly amount spe...

A: The mean of 45.84 and standard deviation of 3.07.

Q: As the supervisor in Programming of X and Y Corporation, you found out that the probability of havin...

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Q: Example 39. The first twelve letters of the alphabet are written down at random. What is the probabi...

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Q: inserted into n numbered cells one by one. If the card number 'i' falls in the cell ´i', we count it...

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Q: 3. representative sample of a The numerical summary provided suggests that the distribution of blood...

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Q: when using the t- dsitribution to find the t-critical value we need to ask ourselves which of  the ...

A: The sample size can be represented as n.

Q: A recent article in a reputable journal states that that 41% of the consumer scam complaints by citi...

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Q: Having more than 1,000 students in a year, assume that I choose a simple random samples of 30 final ...

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Q: A Realtor claims that no more than half of the homes he sells are sold for less than the asking pric...

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Q: 8. What is the equivalent of the mean of the following graph? А. О В. 1 С. 2 D. 3

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Q: An integer is chosen at random from the first two lundred digits. What is the probability that the i...

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