Calculate the median from the following data: Mid. values Frequency Mid. values Frequency 15 65 7 25 75 35 10 85 4 45 2 95 55 4 68

Q: If we draw 2 cards with replacement, what is the chance that the first draw is green and the second ...

A: A card deck contains cards of 4 colors: red, blue, green, and yellow. There are 20 of each color, fo...

Q: Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 a. If the length of the side of each triangle is 1 unit, what is ...

A:

Q: Identify the incorrect statement below: The estimator, X_ from a random sample of X A. Is the mean o...

A: Assume that the random variable is X.

Q: 'Prove that the value of x for the 2 x2 contingency table a |b is given by N(ad -bc)? where N = a + ...

A:

Q: what are the chances they will win the game?

A: here given, When the time runs out in a soccer game and the score is tied, the game will go to a sho...

Q: first model: y = 0.48y, +ê- 0.41 %3D -1 where variance is 0.85 and SSR= 680. Second model: y. 0.4 Ye...

A: Given two models yt=0.48yt-1+ε^t-0.41ε^t-1 where variance is 0.85 and SSR=680 yt=0.4yt-1+0.36yt-2+ε^...

Q: Direction: Solve the problem by using Pearson r and follow the steps shown in Day 3 example. NOTE: T...

A: Values of x and y are given for students we have to findout pearson's coefficient r. 

Q: Directions: Given the number of permutations of objects taken r at a time, show the permutations thr...

A:

Q: A bar offers alcoholic and non-alcoholic beverages. They have 12 alcoholic beverages that cost $10 o...

A: GivenNo.of alcoholic beverages that cost $10 or more = 12No. of alcoholic beverages that cost less t...

Q: For a bivariate distribution, the lines of regression are 3X + 12Y = 19; 3Y + 9X= 46 Find the means ...

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Q: A bank randomly selected 249 checking account customers and found that 111 of them also had savings ...

A:

Q: The heights of men in a city are normally distributed with mean 171 cm and SD 7 cm, while the corres...

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Q: Following data refers to the years of service (variable X) put in by seven specialized workers in a ...

A: Given The data is as follows: X Y 11 700 7 500 9 300 5 200 8 600 6 400 10 800

Q: Gabriel and Lucia took a road trip across the country. The room costs, in dollars, for their overnig...

A: Here AS PER GUIDELINES I have calculated first main question  Here calculated mean and standard devi...

Q: Find the probability using the standard normal curve P(Z >1.67)

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Q: Problem 3-10 (Algo) After plotting demand for four perlods, an emergency room manager has concluded ...

A: From the given information, Period Actual 1 210 2 229 3 224 4 229 5 249 6 259 7 27...

Q: 1. Find the critical value using the Chi-Square Table for a = 0.01, n = 19, right- tailed. %3D

A: Givenα=0.01n=19

Q: The mean and standard deviation of a series of seventeen items are 25 and 5 respec- tively. While ca...

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Q: The horsepower (Y, in bhp) of a motor car engine was measured at a chosen set of values of running s...

A: The t - test statistic for the significance of regression slope coefficient is defined below        ...

Q: A survey question passed out by a dog breeder asks participants: Which of the following dog would yo...

A: Given : There are three types of dog : 1. Shiba Inu (Brown) 2. Shiba Inu (Black) 3. Corgi Let A be t...

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If P(...

A: Let Z-score are normally distributed with mean = 0 and standard deviation = 2 Then,  We will find va...

Q: Price of eggs and milk: The following table presents the average price in dollars for a dozen eggs a...

A: Given that  By using excel regression the values are obtained below

Q: Use the given information to find the number of degrees of​ freedom, the critical values χ2L and χ2R...

A: We have given that  80​% ​confidence interval  n=149​, s=1.97   Degree of freedom =df = n -1

Q: Number of Car Buyers P Do Homework Chapter 124 X Dashboard Statistic Vital Cert Content f → C A A my...

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Q: A population of values has a normal distribution with μ=248.4μ=248.4 and σ=23.6σ=23.6. You intend to...

A: Let X be the value. Given X follows normal distribution with parameters µ = 248.4 and σ = 23.6. The ...

Q: . Calculate standard deviation and coefficient of variation from the data given below: Mid-points : ...

A:

Q: The Marist Poll published a report stating that 66% of adults nationally think licensed drivers shou...

A: Given that, The Marist Poll published a report stating that 66% of adults nationally think licensed ...

Q: The percentage X of a particular compound contained in a rocket fuel follows the distribution N (33,...

A:

Q: roll two six-sided dice, independently of each other. What is the chance that neither roll is odd? ...

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Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean...

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Q: Write the equation of the least-squares regression line. Use the full accuracy shown in the Excel ou...

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Q: If we choose a student at random, are the events "the student is in Section 101" and "the student pr...

A: here for independent event  p(A and B) = p(A).p(B) A ="the student is in Section 101" B = the studen...

Q: Illustration 18. In a distribution exactly normal, 7% of the items are under 35 and 89% are under 63...

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Q: 1) Сз 2) 6Св 8C5 7C3 4) 6С5 5) C2

A: we know that Cr=n!r!×n-r!n

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of...

A: Given,mean(μ)=90standard deviation(σ)=2.5

Q: 4. From the data given below, find out the value of Y when X 35 10 30 40 50 60 70 90 20

A:

Q: Construct a binomial distribution graph for the number of defective computer chips in a lot of 3 if ...

A: Here given, n = 3  p = 0.5 q = 1-0.5 = 0.5

Q: Five hundred draws are made at random with replacement from each of two different boxes containing t...

A: To test the asserted claim that if both boxes have the same proportion (let P1 & P2 are the prop...

Q: Babies STEM The proportion of babies born in the United States that are boys has historically been 0...

A: We have given that  Sample size n =45 Population proportion p =0.513

Q: ility, but not the frequentist one using either the frequentist or Bayesian definition of probabilit...

A: Frequentist: a Frequentist method makes predictions on the underlying truths of the experiment using...

Q: (llustration 54. In a railway reservation office, two clerks are engaged in checking reservation for...

A:

Q: Select the letter of the correct answer: A random variable X has a mean of 45 and a standard deviat...

A:

Q: Suppose a left-skewed distribution exists with a mean of 133 and standard deviation of 15. Consider ...

A: Given data,Mean μ=133sd     σ=15n=39

Q: The following are the marks obtained by a batch of 9 students in a certain test: SI. No. Marks S1. N...

A: Given data is SI.No Marks (Out of 100) 1 68 2 49 3 32 4 21 5 54 6 38 7 59 8 66 ...

Q: The 65th percentile in a set of data is 80. What does this mean? A At least 35% of the scores are le...

A:

Q: Refer to Exercise 6.6 on p. 215 in the 4th edition of OpenIntro Statistics. Instead of doing the two...

A: Given that, The Marist Poll published a report stating that 66% of adults nationality think licensed...

Q: The percentage X of a particular compound contained in a rocket fuel follows the distribution N (33,...

A:

Q: (a) Compute the least-squares regression line for predicting the number of stays from the cost. Roun...

A: The least - squares regression line is in the form of straight line equation form and this equation ...

Q: In 1996, the average price of a commodity was 20% more than that in 1995, but 20% less than that in ...

A: Solution is given in the photo:

Q: The proportion of households with pets is estimated to be 85% The proportion of 200 investigated hou...

A: Given that  The proportion of households with pets is estimated to be 85% = P = 0.85 Sample size (n)...