The table shows the probability distribution of the number of days (x) to complete a construction project by a contractor.   x f(x) 1 0.104 2   3 0.312 4 0.240 5 0.098 6 0.017   8 The variance of the days to complete the project is ________. a 1.665         b 1.542         c 1.428         d 1.322

Q: The probability distribution of number of televisions per household in a small town x 0 1…

A: Given probability distribution is as follows:

Q: X2). Hint: Write P(X1 > X2) = P(X1-X2 > 0) and determine the distribution of X1 - X2. !!

A:

Q: CO2 the owner of a apple plantation, plans to replace the brand of fertilizer that they currently…

A: A distribution with bell shaped curve is called normal distribution which is symmetric about the…

Q: The number of school-related extracurricular activities per student 7 0.059 0.122 0.164 0.178 0.213…

A: Given PMF of X. Now will using this pmf to find required information

Q: Probability Scores 0.25 0.05 2 0.4 6 0.1 11 0.15 12 0.05 14 Find the variance of the above random…

A:

Q: Dirty air: The federal government has enacted maximum allowable standards for air pollutants such as…

A: Given data is x 0 1 2 3 4 P(x) 0.32 0.38 0.20 0.06 0.04

Q: High temperatures in a certain city for the month of August follow a uniform distribution over the…

A: Continuous uniform distribution: A random variable X is said to have the rectangular distribution or…

Q: i. Show that k = 1/6 ii. Find the mean of the probability distribution. ii. Find the variance of the…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: The table below shows the probability distribution of the random variable X.   a. Find the mean of…

A: Solution x ​P(X=​x) x*P(X=x) x2 x2*P(X=x)  1 0.3 0.3 1 0.3 2 0.4 0.8 4 1.6 3 0.3 0.9 9 2.7…

Q: Subject- Statistics and Probability Instruct. The random variable X represents the number of…

A: Given: Probability distribution: x 0 1 2 3 P(x) 0.95 0.03 0.01 0.01

Q: x P(x) 0 0.100 1 0.250 2 0.250 3 0.300 4 0.100   Verify it is a Probability Distribution. Find the…

A:

Q: Probability Scores 0.25 1 0.3 0.1 0.2 7 0.05 11 0.1 14 Find the variance of the above random…

A: x p(x) 1 0.25 2 0.30 3 0.10 7 0.20 11 0.05 14 0.10

Q: The number of dogs per household in a small town Dogs Probability 0. 0.650 0.223 0.085 0.023 0.013…

A: From the provided information, X (Dogs) p (x) (Probability) 0 0.650 1 0.223 2…

Q: Variance of a uniform probability distribution is Var(X)=(a-b)^ 2 /12 where b>a True False

A: Given: Varx=a-b212 .......where b>a

Q: The probability distribution shows the number of items a customer buys in a book store and their…

A: Given data is X 1 2 3 4 5 P(X) 0.60 0.28 0.07 0.03 0.02

Q: e probability distribution of X, the number of seats occupied in a jeepney at a given time of day,…

A:

Q: The function f (x) = cx², x = 1, -1, 2, -2, 3,-3 In order for the random variable X to be a…

A: use property of valid pmf

Q: . Suit Sales The number of suits sold per day at a retail store is shown in the table, with the…

A:

Q: Dirty air: The federal government has enacted maximum allowable standards for air pollutants such as…

A: According to the given information, we have The probability distribution table is given. x 0 1 2…

Q: An investor has six stocks that she follows each day. The random variable being studied is X, the…

A: Given information: The random variable X denotes the number of stocks that increase in value each…

Q: Which is a continuous random variable? Group of answer choices X = "the number of blue feathers on a…

A: Given: A group of answer choices: X = "the number of blue feathers on a Macaw Parrot" Z = "the…

Q: Subject- Statistics and Probability Instruct. The random variable X represents the number of…

A: Given probability  P(X=0)=0.95, P(X=1)=0.03, P(X=2)=0.01, P(X=3)=0.01

Q: A car dealership sells 0, 1 or 2 luxury vehicles each day. When selling a car, the dealer also tries…

A: Given joint probability table is as follows: The probability density of X is as follows:…

Q: The probability that a standardised normally distributed variable lies within the range (-2,2) is…

A:

Q: A random variable X has the probability function as given in the table to the right. It is easy to…

A: Given that - A random variable X has the probability function as given in the table to the right.…

Q: #Electronic Scale An electronic scale at an automated filling operation stops the manufacturing line…

A: Here An electronic scale at an automated filling operation stops the manufacturing line after three…

Q: The random variable X conforms to a binomial distribution. The probability of the success event is…

A: Given: Probability of success p = 13 Variance σ2 = 16 Formula Used: It is given that X follows…

Q: he number of dogs per household in a small town Dogs 0 1 2 3 4 5…

A: The random variable X denotes the number of dogs per household in the town. The formula for mean,…

Q: Exercise Suppose that X1, X2, X3.....X200 are independent random variables with an arbitrary common…

A: Suppose that X1, X2, X3.....X200 are independent random variables with an arbitrary common…

Q: 3- Credit Cards A large retail company encourages its employees to get customers to apply for the…

A: Probability is defined as the total number of favorable cases of an event divided by the total…

Q: Answer must be a fraction in lowest term. * The probability distribution of the discrete random…

A:

Q: Probability Scores 0.15 4 0.05 5 0.45 6 0.15 10 0.2 12 Find the variance of the above random…

A:

Q: Variance of a uniform probability distribution is Var(X) = (a-b)²/12, where b> a. Select one: O True…

A: TRUE

Q: The probability distribution given describes the number of thunderstorms that a certain town may…

A:

Q: P(X) 2 0.1 4 0.4 6 0.4 8 0.1 A random variable X has a probability function as given in the table…

A: Given data, X P(X) 2 0.1 4 0.4 6 0.4 8 0.1

Q: The joint probability distribution of X and Y is given in table below Find i- the marginal…

A: Given that  The joint probability mass function of X and Y is  Y        X X=1 X=2 X=3 X=4 Y=1…

Q: CO2, the owner of an apple plantation, plans to replace the brand of fertilizer that they currently…

A: The random variable X follows normal distribution. We have to find the probability that the brand of…

Q: Use the probability distribution to complete parts​ (a) and​ (b) below.   The number of​…

A: Given observation and calculation is shown below X P(X) XP(X) X2P(X) 0 0.061 0 0…

Q: The joint probability distribution for the Random variable X and Y is shown below where X = the…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: Practice Exercise 1. Let X represent the number of times a grade 10 student visits an Internet Café…

A: Since the question to be answered is not specified, we'll be answering the first question only.…

Q: The probability distribution of number of televisions per household in a small town 1 2 3 4 P(x)…

A: The probability distribution of number of televisions per households in a small town is given by :…

Q: The probability distribution shows the number of items a customer buys in a book store and their…

A: Let x be the any random variable and it said to be the probability distribution then the random…

Q: Subject- Statistics and Probability Instruct. The random variable X represents the number of…

A: Given that  The probability distribution is shown below.  X                0                1…

Q: Numbers (26-30). Determine the VARIANCE AND STANDARD DEVIATION OF THE PROBABILITY DISTRIBUTION. X…

A:

Q: The function f (x) = xc², x = 1, -1, 2, -2, 3, -3 In order for the random variable X to be a…

A: We know that,   Total probability = 1 So for discrete distribution Summation (fx) = 1  =…

Q: The probability distribution shows the number of items a customer buys in a book store and their…

A:

Q: The joint probability distribution for the Random variable X and Y is shown below where X = the…

A: From the provided information, X = the number of Strawberry ice-cream cones in the freezer. Y = the…

Q: • Investment in 5 Internet business ventures • The number of successful ventures has a probability…

A: The random variable X denotes the number of daily newspapers a person reads per day. The formula for…