For a binomial random variable the probability of success per trial is  π = 0.35   27 What is probability of 10 successes in 30 trials? a 0.1820       b 0.1707       c 0.1601       d 0.1502

Q: If X is a binomial random with n =8 and p = 0.6 , what is the probability that  X is less than or…

A: If we have n trials each having two outcomes, say Success and Failure, trials being independent and…

Q: z is a standard normal random variable. The P (-2.20  z  2.20) equals     a. 0.9645.   b. 0.9722.…

A: We know that,  If z is standard normal distribution with mean(μ) = 0 and standard deviation(σ) = 1…

Q: The discrete random variable X has the probability distribution given by: x -3 1 3 5 7 P(X=x) 2r…

A: As per Bartleby guideline expert have to answer first three subparts only dear student please upload…

Q: Which of the following is an example of a discrete random variable?

A: We need to use concept of Discrete and Continuous random variables

Q: 3. Consider a share that is modelled by a binomial random variable. The probability that the share…

A: Given data consider a share that is modelled by a binomial random variable

Q: 2. A statistics professor has office hours from 9:00 AM to 10:00 AM each day. The number of students…

A: If this is the rest of the question -The professor gives each student 10 minutes. Determine the…

Q: If z is a standard distributed random variable, what is the probability of P(z<2.04)? a) 0.9793 b)…

A: It was stated that Z is a standard normal variable. Need to find the probability of P(Z&lt;2.04).

Q: The random variable x represents the number of cars per household in a town of 1000 households. Find…

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Q: The probability distribution of the random variable X is shown in the accompanying table. x     −5…

A: As per given by the question, there are given a table of X and their probability. Now, (d). PX⩾2…

Q: A binomial experiment has a probability of success equal to p = 0.4. If five trials are performed,…

A:

Q: Suppose a normally distributed random variable x has a mean of 100 and P(x < 90) = 0.30. What is the…

A: Given : Mean ,u = 100  P(x &lt; 90) = 0.30 where x = 90

Q: (iv) f(x) 0.008+ 0.007- 0.006- 0.005- 0.004 0.003- 0.002 0.001 .0684 0 0 ← 50 100 150 200 250 300…

A: Given information: Probability mass function for the random variable x having a triangular…

Q: 5. What is the standard deviation of the given discrete random variable? a. 3.28 b. 1.36 c. 3.57 d.…

A:

Q: X is a uniformly distributed random variable with A = 10 and B = 20. a) What is the 75th percentile…

A: X is a uniformly distributed random variable with A = 10 and B = 20.a) What is the 75th percentile…

Q: A data scientist tracked how many cups of coffee she drank every day at work over the course of a…

A:

Q: The table below was generated from a survey of college students. The random variable x represents…

A: given data , x p(X)   0 0.05 1 0.25 2 0.20 3 0.25 4+ (here we use x=4 for the 4+…

Q: The length of an adult anaconda snake varies uniformly from 7.1 to 18.3 ft. A researcher selects an…

A: The random variable X is the The length of the adult anaconda snake.  Therefore, option c) is…

Q: The random variable X has the following probability distribution x 0 1 2 P(x) 0.2 0.6 0.2…

A: The random variable X has the following probability distribution is, x 0 1 2 P(x)…

Q: The probability distribution of the random variable X is shown in the accompanying table. -5 -3 -2 2…

A: Given data is x -5 -3 -2 0 2 3 P(X=x) 0.16 0.12 0.31 0.17 0.14 0.10

Q: - Calculate the variance of X, Var (X) =?, By finding the value a in the table so that the X random…

A: From the given information, The probability distribution table is as given below: x Pr(X=x) 1…

Q: A random sample of size 20 is taken from a Binomial distribution for which n = 25 and the…

A: Solution-: Given: n=25, p=0.7 We find P(the sample mean less than18.1)=?

Q: The discrete random variable Xhas the probability distribution given by: 7 9. 12 13 15 P(X==) u/2…

A: Given: The probability distribution is, x 7 9 12 13 15 PX=x u2 0.05 0.35 u 0.15 The…

Q: For a random variable with the given probability distribution. 3 4. fox) 0.41 0.37 0.16 0.05 0.01…

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

Q: The probability distribution of the discrete random variable X is shown in the table below. x -3 -1…

A:

Q: For the standard normal random variable z, find P(z ≤ 0.57). Select one: A. 0.2877 B. 0.7157 C.…

A: Draw the normal curve and shade the area to the left of z=0.57.

Q: The length, X, of a fish from a particular mountain lake in idaho is normally destributed with p -…

A: As per by bartleby guidelines for more than three subparts only first three are to be answered so…

Q: For a binomial random variable the probability of success per trial is  π = 0.35   30 What is the…

A: We have given that,  X be the random variable from Binomial distribution with probability of success…

Q: The distribution of the binomial random variable (X) has the following parameters; p = 0.3 and n =…

A: Given : Probability of success,p = 0.3 Probability of failure,q=(1- 0.3)= 0.7…

Q: z is a standard normal random variable. The P (-1.20  z  1.50) equals     a. 0.8181   b. 0.4332…

A: Given  A multiple choice question based a random variable.

Q: 24. What is the missing probability when the random variable is 200? 100 200 300 400 500 600 P(X)…

A: Probability distribution table is given. X 100 200 300 400 500 600 P(X) 0.1 x 0.5 0.15 0.05…

Q: Which is a discrete random variable?   Z = "the weight of newborn African elephants"   X = "the…

A: The discrete random variable is:-

Q: Find the expected value for the random variable.   z 9 12 15 18 21   ​ P(z) 0.12 0.22 0.42 0.16 0.08…

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Q: In this exercise, the random variable n represents the number of units of a product sold per day in…

A: To solve the following problem

Q: Use a normal random variable to approximate the probability that a binomial random variable is less…

A: X~Bin(n=20,p=0.4) P(X&lt;8)= ?

Q: Usining Binomial probability distribution formula for a random variable X , compute Where N= 15 ,…

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Q: q14- If the random variable X is normally distributed with a mean of 75 and a standard deviation of…

A: Option D is correct.

Q: The random variable x represents the number of cars per household in a town of 1000 households. Find…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: f x is a binomial random variable with n = 10 and p = 0.8, the mean value of x is _____. 8 3.2 4.8…

A: Given,If x is a binomial random variable with n = 10 and p = 0.8mean value of x=?

Q: The random variable X, representing the number of defective missiles when 3 missiles are fired, has…

A: Given data, x P(X=x)0 0.511 0.382 0.103 0.01 Calculate the mean and variance.

Q: 23. Let Y denote a geometric random variable with probability of success p. (a) Show that for a…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: You own a local company that has special equipment for moving pianos.  Your company has enough…

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Q: Suppose a normally distributed random variable x has a mean of 100 and P (x < 90) = 0.40. What is…

A: Formula: Z =(X - μ)/σ

Q: X          0         1        2         3    TOTAL P(X)    .40      .30     .20      .10    1.00…

A: It is an important part of statistics. It is widely used.

Q: Siven the table of probabilities for the random variable -1 2 P(X) 0.02 0.07 0.22 0.27 0.42

A: Probability distribution is given.

Q: The random variable X is the number of people who have a college degree in a randomly selected group…

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Q: What is the mean of this discrete random variable? 2 3 4. 0.05 0.35 0.20 0.35 0.05 P(x)

A:

Q: The table provides the probability model for the random variable X = the number of %3D clothing…

A: Given Information:

Q: Which of the following is an example of a discrete random variable?   The amount of time it takes…

A: Definition of Discrete random variable: Any random variable defined on countably finite or countably…

Q: A discrete random variable x has the the following probability distribution      X 2 3 4 5 6…

A: Total probability should be 1 for probability distribution, So  (3k+3k +3k+2k+k)= 1 12k= 1 K= 1/12…