Probability Theory studies the mathematical chances of something happening based on real and numerical data, such as: rolls of dice and coins, even the chance of errors in research. Consider two tosses of a common die, what is the probability that the sum of the two numbers results in at least 11?

Q: p.d.f. h(x) of the random variable x is defined by h(x) =3/(4(1-x²)),-1<x< expected value of x.…

A: Given pdf is,

Q: Another random sample of the number of friends for 30 users of the website is shown. Use this sample…

A: Given: 162 114 131 87 108 63 249 135 172 196 127 100 146 214 80 55…

Q: signment will assess your ability to calculate t andard deviation of a set of data. The weights o

A: Median is one of the measure of central tendency. Median shows middle value for given data set.…

Q: Is the given statement true or false? a. False

A: The statement about combination is given.

Q: Frequency 10 n = 8 6 4 2 180 182 184 186 188 190 192 194 amount of sugar (mg) What is the sample…

A: We have given that the amount of sugar ( in mg ) in each snack is summarized in the histogram.

Q: Calculate the means and standard deviations of:1, 2, 3, 4, 5 O a. mean = 3; st. dev. = 1.414 b. mean…

A: Data given 1,2,3,4,5

Q: A discrete random variable has probability distribution: x= 1, 2,3,4, 5 and P(x) =0.12,0.15, 0.23,…

A: Given information: x P(x) 1 0.12 2 0.15 3 0.23 4 0.30 5 0.20 Sum 1.0

Q: Using Holt's method forecasting with alpha=0.4 and beta=0.5, company ABC would like to forecast the…

A: The Holt's Forecasting for the period t+1 is given as: Ft+1=Lt+Tt Where, Lt, i.e., the current level…

Q: What is the class boundaries, mid point and width for the class 12.3-15.9

A: According to the given information in this question We need to find class boundaries, mid point and…

Q: The salaries of a company's employees are normally distributed with mean 15000 and standard…

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Q: random variable, y, has a known probability distribution given by Y :2,4,6,8, 10 and P 0.17,0.23,…

A: Given information: Y 2 4 6 8 10 P(Y) 0.17 0.23 0.2 0.3 0.1 Formula: Expected Value=∑YPY

Q: The graph shows the amount of profit, in millions of dollars, for a large company in Seattle. The…

A: Obtain the value of the absolute change from 2012 to 2014. The value of absolute change from 2012 to…

Q: Given the following histogram for a set of data, how many values in the data set are greater than…

A:

Q: In how many ways can we select 6 people out of 12, of which a particular person is not included? O…

A: Given Number of people is given=12  6 people want to be selected out of 12

Q: In a lot of 200 electrical fuses, 20 are known to be nonconforming. A sample of 10 fuses is…

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Q: Twenty students were surveyed this week at MPC, these students were asked how many units they were…

A: Given : The data is  13 15 9 12 4 14 15 8 1 6 11 8 18 3 12 10 14 11 7 12

Q: Calculate the means and standard deviations of:1, 2, 3, 4, 5 O a. mean = 3; st. dev. = 1.414 b. mean…

A:

Q: what is the z score for a person who received an SAT mathematics score of 685?

A: Here Given, The mean mathematics score for seniors who took the SAT in 2018 was 531. If the standard…

Q: A discrete random variable has probability distribution: x= 1, 2,3,4, 5 and P(x) =0.12,0.15, 0.23,…

A: Given that   Standard deviation =1.6339 We have to find true or false

Q: An academic department with five faculty members-Anderson, Box, Cox, Cramer, and Fisher-must select…

A: given data five members : anderson,box,cox,cramer,fisher select two person at random.

Q: What are the upper and lower limits and the width of the CI if you change the confidence level to…

A: Given that M = 130 SD = 15 N = 49 We have to find the upper and lower limits for the confidence…

Q: A teacher claims that over 9% of maths students are married. In the survey at the beginning of…

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Q: The probability that a component is acceptable is 0.93. Ten components are picked at random. What is…

A: given data  P(component is accepted) = P = 0.93 n = 10 component selected x = no. of acceptable…

Q: As part of the United States Department of Agriculture's Super Dump Cleanup in the early 2000s,…

A: Given information: X 3.4 4 5.6 3.7 8 5.5 5.3 4.2 4.3 7.3 8.6 5.1 8.7…

Q: the average length of books in her library. She has divided her books into a few different…

A: A type of random sampling known as stratified sampling. It divides a population into smaller…

Q: Suppose the total weight of passengers and luggage on an airline flight is normally distributed…

A: Mean(µ) = 8914 Standard deviations (σ) = 32 X ~ N (µ, σ )= N(8914, 32)

Q: need the answer quick

A: Given: fx=x218         -3&lt;x&lt;3 P(X&lt;1)  and P(|X| &lt;1) needs to be calculated.

Q: Calculate E(X³), where X has the following PMF: .5 x=1 f(x)=.3 x=2 2 x=3

A: Given that  PMF of X is  x 1 2 3 f( x ) 0.5 0.3 0.2

Q: Year 1 2 3 Discussion Questions 3. The following is the experience of Insurer B for the last three…

A: Given that: Year Number of Exposures Number of Collision Claims Collision Losses ($) 1 20000…

Q: 4. A company pays an average of Php 100.00 per hour with a standard deviation of Php 15.00. If the…

A: Note: If the question contains multiple subparts only allow to do first three subparts as per…

Q: 8 6 Frequency A N 16 21 26 31 data Based on the histogram above, what is the class width? 1 6 Class…

A:

Q: Company A produces 10% def Company B produces 20% def and C produces 5% defective choosing a company…

A: Company A produces 10% defective product. Company B produces 20% defective product. Company C…

Q: Discussion Questions 3. The following is the experience of Insurer B for the last three years:…

A: Given data is

Q: Construct the cumulative frequency distribution for the given data. Age (years) of Best Actress when…

A:

Q: The accompanying table lists probabilities for the corresponding numbers of unlicensed software…

A: Number of unlicensed software packages x p(x) 0 0.125 1 0.375 2 0.375 3 0.125

Q: For the binomial distribution, which formula finds the standard deviation? Choose the correct answer…

A: Given X~Bin(n,p)

Q: The mean playing time for a large collection of compact discs is 34 minutes, and the standard…

A:

Q: Use the data in the following table, which lists drive-thru order accuracy at popular fast food…

A: Given that,                      Drive-thru Restaurant   A B C D Order Accurate 339 269 247 132…

Q: Sep 3 at 4:32pm Instructions a 25 question multiple-choice exam. You have 60 minutes. Question 8 For…

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Q: not want to exchange Assume the v or the watches? ma normally distributed. 15. To help students…

A:

Q: Let A = the event of getting at least one defective calculator when four are randomly selected with…

A: Given:  Event A= getting atleast one defective calculator when 4 are randomly selected Then to write…

Q: Survey Data Overall Satisfaction Rating 3 3 4 1 3 5 433AGANA AW54W 3 2 4 5 4 5 3 4 4 Typical Visits…

A: Given survey data: .

Q: E (XY)=E (X)E (Y) if x and y are in O a. True

A: The statement is E(xy)=E(x)E(y) if x and y are independent.

Q: The means of 6, 6, 6, 6, 6, 6 is 6?

A: Let X denote the given observations. We have to calculate the mean of X.

Q: Class Intervals : Frequency: : Find A.M. for following data (Open end interval) Below 20 20-30 10 6…

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Q: Data was collected for 258 randomly selected 10 minute intervals. For each ten-minute interval, the…

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Q: A random variable, y, has a known probability distribution given by :y=2, 4, 6,8,10 and P…

A: given data  y P(y) 2 0.17 4 0.23 6 0.2 8 0.3 10 0.1

Q: MONEY 1,001.00- 1,500.00 1,501.00 -2,000.00 CEBUANA LHUILLIER RATE PHP95.00 PHP110.00

A: The piecewise function is a function built from pieces of different functions over different…

Q: The cumulative relative frequency table for a set of data is shown below. What is the missing…

A:

Q: A box in a supply room contains 21 compact fluorescent lightbulbs, of which 7 are rated 13-watt, 8…

A: given data 7-  13 watt 8 -  18 watt 6 -  23 watt ____________________________ 21 - total light bulbs…