Each user on a computer system has a password, which is seven to nine aracters long, where each character is an uppercase letter or a digit. Each ssword must contain at least one digit. How many possible passwords are ere?

Q: The following table gives indices of industrial production of registered Calculate the value of the ...

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Q: In a certain photographic process of 100 prints, the developing time of prints may be looked upon as...

A: Given,sample size(n)=100mean(μ)=16.20standard deviation(σ)=0.52

Q: Calculate Karl Pearson's coefficient of correlation from the following data: 100 200 300 400 500 600...

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Q: A perfect straight line sloping downward would produce a correlation coefficient equal to: O A. -1 В...

A: Given that ; A perfect straight line sloping downward would produced a correlation coefficient.........

Q: c. Let X be a continuous random variable with the cumulative distribution function: if x < 0 1 if 0 ...

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Q: The following data are given to an economist for the purpose of economic analysis. The data refer to...

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Q: 8. Suppose that Y is normally distributed with parameters u and o. You observe Y and then build a re...

A: Given that Y is normally distributed with parameters μ and σ.

Q: A food safety guideline is that the mercury in fish should be below 1 part per million (ppm). Listed...

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any ...

Q: How would you describe each distribution?

A: According to a gallup survey of boys 77% of boys had played computer games in the past week compared...

Q: Suppose f (x) = 8x, 0 < x < 0.5 is a pdf. P(X=0.3)=? O 2.4/0.5 О 0.36 O 2.4

A: Result  If f(x) is the continuous distribution then  P(X=c)=0 

Q: From Actuarial Math A telemarketer of an insurance company makes repeated calls to persons on a comp...

A: Let X be the number of unsuccessful calls before the third sale is made. Since all the calls are ind...

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 data given below find : (a) the two regression equations. (b) the coefficient of correlatio...

A: A)  Regression line Economics on statistics Here dependent variable y is Economics  And independent ...

Q: III. Evaluate each expression. 1. 13! = %3D 2.10! = 3.7! =

A: 1) 13! 13*12*11*10*9*8*7*6*5*4*3*2*1 13! = 6227020800 2) 10! 10*9*8*7*6*5*4*3*2*1 10! = 3628800  

Q: Illustration 13,1. Construct index numbers of prices from the following data using (a) Laspeyre's (b...

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Q: a. --248 c. 2.43 d. z = -0.89 z = -) f. 03 z = -2,3 h. z = 1.78 i. z = -3.05 j. z= -1.01

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Q: Suppose Y1, Y2, Y3, and Y4 are mutually independent and identically distributed exponential random v...

A: Given  Yi~exp(1)   

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

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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: llustration 13.2. Construct index number of prices from the following data using (a) Laspeyre's (b) ...

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Q: B. Complete the frequecy distribution table and find the measures of dispersion Class Interval Frequ...

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Q: when ƒ (x) = –24 (4) What is f (-2) x- Round answer to the tenths place. Type your answer...

A: Given  f(x)=-24(1/4)-x  f(-2)=?   

Q: Enter textA certain drug is claimed to be effective in curing colds. In a n experiment on 164 people...

A: Solution is given:  

Q: If Ho is false, the true or actual mean is equal the hypothesized mean, µ = µo O True O False

A: Solution-: If H0 is false, the true or actual mean is equal the hypothesized mean, μ=μ0  -True /Fals...

Q: How many different color and size combinations are available to the public?

A: Here use counting principle

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no ...

A: GivenThere is no reasonable preliminary estiamtionAssume p=0.5Margin of error(E)=0.01confidence leve...

Q: Do less agreeable Facebook users tend to spend more time on Facebook? A study (Ivcevic and Ambady, 2...

A: Given a study about an individual's volume of Facebook use was associated with levels of "agreeablen...

Q: Standard automobile license plates in a country display 2 numbers, followed by 3 letters, followed b...

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Q: A jar contains 10 red marbles numbered 1 to 10 and 12 blue marbles numbered 1 to 12. A marble is dra...

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for you...

Q: 12. You are given the following data pertaining to kilowatt hours of electricity consumed by 100 per...

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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: 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: Example 20. Form a frequency table from the following data : Age (in years) No. of Persons Age (in y...

A:

Q: selow computer 1960 to 196 ) Obtain a scatter diagram of the data. » Construct a line that approxima...

A: Given data, X Y X*Y X*X 15 38 570 225 30 53 1590 900 16 60 960 256 39 72 2808 1521 20 4...

Q: H1: u > uo is an upper tailed hypothesis test True or False

A: Given that  H1: u &gt; uo

Q: 14. Event A and Event B are dependent. 21 a) P(B)=-; p(A and B) = 00i ; P(B|A) = b) P(B|A) =; P(A an...

A: Given that  a)  P(B)=7/10 , P(A and B)=21/200  Find P(B/A)= ? b)  P(B/A)=7/40 , P(A and B)=7/200 Fin...

Q: Identify the kind of distribution displayed in the problem (binomial, multinomial, poisson, etc.) an...

A:

Q: How would you describe each distribution?

A: here given, Two stores sell watermelons. At the first store the melons weigh an average of 22 pounds...

Q: An electrical firm manufactures light bulbs that have a length of life that is normally distributed ...

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Q: Example 10. From the following data, estimate the number of persons earning weekly wages between 60 ...

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Q: (d) P(X > 7) = i (e) Determinex such that P(X < x) = 0.99. X = i

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Q: Weight in pounds 52.5 – 55.5 Frequency 55.5 – 58.5 12 58.5 – 61.5 17 61.5 – 64.5 22 64.5 – 67.5 15 T...

A: Find  P85 percentile  P60 percentile   

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)...

Q: 11. In a partially destroyed laboratory record of an analysis of correlation data, the following res...

A:  

Q: he table below shows how students performed based in their gender. Use the table to answer the fol...

A: P ( A or female ) = ? P ( D/ Male ) =?

Q: How do I solve the last problem?

A:

Q: 8. Using Table A and the given Z scores, find the following probabilities: (a) P(Z < 1.46) (b) The p...

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

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Q: Illustration 12.18. Assuming population grows with a geome- tric law, fit a trend to the following f...

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Q: Example 2. From the fixed base index numbers given below, calculate the Link Relatives: Year: 2000 2...

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