From the following data find out whether there is any relationship between sex and preference for colours: Colour Mates Females Total 40 60 100 Green White 35 25 60 Yellow 25 15 40 Total 100 100 200

Q: Use the Venn Diagram to determine the following probabilities.

A: Here AS PER POLICY I HAVE CALCULATED 3 subparts kindly REPOST for remaining Here  There are total 80...

Q: A certain machine lasts on the average 5 years with a standard deviation of 6 months. Assuming that ...

A: We have given that.   X~N( μ , ?^2 )   μ=5 , ?=6   Z-score =( x - μ )/?

Q: .8. Calculate B, and B, for the following data : X: 1 2 3. 4 6 8. F: 10 15 20 25 20 15 10

A:

Q: Find the probability of showing heads on both tosses

A: A coin is tossed twice. Let E be the event "the first toss shows heads" and F the event "the second ...

Q: The following data, based on 450 students, are given for marks in Statistics and Economics at a cert...

A:

Q: A retailer is trying to decide between two suppliers to purchase 100 units a product. Supplier 1 off...

A: Given: Number of units to be purchased = 10 Selling price of first supplier = $25 Buyback price of ...

Q: From the values of the factors given below, find the corrected values of the first four Moments abou...

A:

Q: 1. Suppose a quality manager for XYZ Computers has collected the following data on the quality statu...

A:

Q: (a) What is the probability that the rounded result is 167 grams? Round your answer to three decimal...

A: Here Given  True measurement error is normally distributed with  Mean=μ=0 sd=σ=0.5 gms True weight=1...

Q: Activity 1 The following are the age (in years) and systolic blood pressure of 20 apparently healthy...

A: Correlation are used to measure the strength of association between the two numerical variable. The ...

Q: 2. Ash has 12 packs of trading cards. Each pack has a chance of containing a Victory card, which are...

A: Given - There are 12 packs of trading cards.  n = 12               Probability of victory card = P(V...

Q: Two stores sell watermelons. At the first store the melons weigh an average of 22 pounds, with a sta...

A: Given that  μ1 = 22 , ?1 = 2.5 , n1= 40 μ2 = 18 , ?2 = 2 , n2 = 34

Q: 25. Sports Cars: Miles per Gallon You take a random survey of 25 sports cars and record the miles pe...

A: For the following, use a normal distribution or a t-distribution to construct a 95% confidence inter...

Q: Example 16. The class marks of a frequency distribution are 6, 10, 14, 18, 22, 26, 30. Find the clas...

A:

Q: Find the mode(s) for the data items in the given frequency distribution. Score, x Frequency, f 1. 2 ...

A: Given data is  score x 1 2 3 4 5 6 7 8 Frequency F 1 2 1 5 6 2 4 5

Q: Residual Plot 20 24 20 40 100 10 15 20 Order (Time) Linear regression models rely on four important ...

A: Linear Regression Model's rely on four important assumptions ("LINE") 1) L - Linearity   The relatio...

Q: For a moderately skewed distribution of supply of Product A, arithmetic mean is 100, and coefficient...

A:

Q: The arrows can only be dragged to z scores that are accurate to 1 place after the decimal point (the...

A: GivenP(z<0.9)

Q: fllustration 12.12. Fit a trend line by the method of four yearly moving averages to the following t...

A:

Q: Find the MLE of 0.

A: It is known that MLE maximizes the likelihood function or log-likelihood function. First we have to ...

Q: 6. Compute by suitable method the index number of quantity from the data given below : 1999 2000 Com...

A: Solution is given:

Q: Calculate the Karl Pearson's coefficient of correlation of the short-term ocillations for the indice...

A: The given data is ,  Year  index of supply (x) index of price (y) 2003 91 117 2004 98 97 20...

Q: The following table shows the average annual income in a certain country, adjusted for inflation, fo...

A: Given that  The given problem is solved using excel regression 

Q: Suppose the random variable, X, is the number of correctly guessed items for the six bins. This illu...

A: Here given, In the first round, Shawn has to guess the item hidden in each of the 6 distinct bins. I...

Q: Let X be a binomial random variable with n = 20 and p = 0.1. a) Find the formula for the probability...

A: We have given that  Number of trials n=20 Success of probability p =0.1 X~binomial ( n ,p)   NOTE:- ...

Q: Given the table of probability mass function below, solve for the variance. 2 3 4 6. P(X= x) 0.05 0....

A: The probability mass function is, X 1 2 3 4 5 6 P(X = x) 0.05 0.05 0.15 ...

Q: f(x) = 0.2 · e-02x Calculate the mean and variance for the random variable: E(X) = i V(X) = i

A: Given The waiting line at a popular bakery shop can be quite long. Suppose that the waiting time in ...

Q: Nlustration 12.14. Trend equation for yearly sales (in 1000 Rs) for a commodity with year 1971 as or...

A:

Q: Evaluate C( 7, 4) 35 O 70 84 O 104 O Option 2 From a class of 12 girls and 18 boys, how many study g...

A: we know that Crn=n!n-r!×r!

Q: Fruity Combination – In the second round, Shawn has to correctly guess the combination of four fruit...

A: Given that, the fruits have chances to being selected in every slot:  Fruit Probability (p) App...

Q: Problem 3: From an experiment in an industrial process the following data have been obtained (see ta...

A: Given the experimental data as t ut yt 1 -1 0 2 -1 -0.4 3 -1 -0.69 4 -1 -1 5 1 -1.27 ...

Q: In each of the following examples, identify the sampling method being used and explain why. 1. A so...

A: Sampling method can be of 2 types as given below: Probability sampling method Non-probability sampl...

Q: the probability distribution function of the profit gained by “SmartB” from a phone battery

A: SmartB” owns a phone battery assembly line which provide phone battery to a mobile company. It is kn...

Q: A car hire firm has two cars, which it hires out day by day. The number.of demands for a car on each...

A:

Q: Town A B C D E F G Population (lakh) (X ) 11 14 14 17 17 21 25 No. of TV sets demanded ('000) (Y ) 1...

A: Given The data is as follows: Town Population (lakh) (X) No. of TV sets demanded ('000) (Y) A 1...

Q: i) If U, and U, each have a normal distribution with mean 0 and variance 202. Furthermore, my, (t) =...

A:

Q: If f(x) is a pdf, then f(x) can take any value in R (i.e., f(x) can be any real number). O True Fals...

A: We have given that the statement about to the probability density function (pdf) f(x). 

Q: Suppose you wish to find the average annu salary for school teachers in the United States. You poole...

A: Given data,Mean μ=53145sd    σ=16451n=31Find 95% CI?

Q: P value < a/2, on a two-tailed hypothesis test would lead to rejecting H, O True O False

A: We have given that,  P- value  &lt; α/2, on a two - tailed hypothesis test would lead to rejecting H...

Q: "The weights of 1,000 children, in average, is 58kg with standard deviation of 18kg. Suppose the wei...

A: Solution-: Given: μ=58,σ=18,n=1000 We find, how many children weight between 48kg and 57kg?  

Q: Find the standard deviation for n = 100 and p = 0.75 when the conditions for the binomial distributi...

A:

Q: 15. In the "secret" lock on the common axis are four disks, each of which is divided into five secto...

A: The probability of an event is the ratio of the number of cases favorable to that event to the numbe...

Q: The mean annual cost of automobile insurance is $939. Assume that the standard deviation is = $245. ...

A: We have given that.   X~N( μ , ?^2 )   μ=939 , ?=245   , n/50   Z-score =( x - μ )/?   NOTE:- Accord...

Q: Illustration 12.25 Trend equation for yearly sales (in '000 R$) for a commodity with year 1979 as or...

A:

Q: Scenario: The Department of Health is conducting random drug testing in a barangay in relation to th...

A: As per the honor code, we are allowed to answer three sub-parts at a time so we are answering the fi...

Q: What is the best correlational test to use in SPSS for a research sample size of 39?

A: A correlation coefficient is a value that shows how closely two sets of measurements are related. It...

Q: (a) The first three moments of a distribution about the value 1 are 2, 25 and 80. Find the mean, sta...

A:

Q: Bob Nale is the owner of Nale's Texaco GasTown. Bob would like to estimate the mean number of litres...

A:

Q: Answer question 4 to 5

A: Graph is a pictorial representation of data in graphical form.

Q: In how many ways can an adviser assign a different task to 9 students from a class of 15?

A: Here we need to assign a different task then we would use combination.   Combination formula: C(n,r)...