Which of the following does not belong to the steps in finding the variance of probability distribution in a random variable? O Square the results of the difference between mean and random variable x. O Add the mean from each value of a random variable x. O Find the mean of the probability distribution. O Multiply the results obtained in squaring the difference between mean and random variable x by the corresponding probability.

Q: Sample again from 1 to 1000 but look at the last digit of the sample squared. That square could end…

A: Here, we are asked to find the square of a number between 1 and 1000 and look at its last digit. To…

Q: Can you please help me interpret this data?

A: Measure of the central tendency are used to measure the average of the observation. Some of the…

Q: A spinning Merry-go-round consists of 8 different colors chairs numbered 1 to 8. When it stops, Mary…

A: Let, X denotes the number observed.

Q: 2. a. It is known that 4% of the screws produced by a company weigh less than their specified value,…

A:

Q: Two cards are drawn from a shuffled deck of cards. Make a probability distribution table where rande…

A: From the given information, 2 cards are drawn from the deck of cards. In the 52 deck of cards, there…

Q: A spinning Merry-go-round consists of 8 different colors chairs numbered 1 to 8. When it stops, Mary…

A: Reviewing the information, X : Chair number on which Mary sits X=(1,2,3,4,5,6,7,8)

Q: The Probability Distribution describes Select one: a. Most of the values that can be obtained by the…

A: According to the given information, we haveThe probability distribution is given.

Q: 8. In a Youth Club, the expected number of people who can play a musical instrument is 4 and the…

A: Excepted No.  = 4 Variance = 3.2

Q: The probabilities that a customer buys 1, 2, 3, 5, 8 apples each day in a grocery store are 0.20,…

A: Given information- We have given the probability distribution for customer who buys apples each day…

Q: What is the probability that the sample mean will be within 1 unit of the population mean?

A:

Q: Complete parts (a) and (b) below. The number of dogs per household in a small town Dogs Probability…

A: mean=E(X)=∑x.P(X)

Q: Assume that 11% of Douglas College students are left-handed. Suppose you randomly select 100…

A: Given that n= number of observation= 100 p= probability of success= 11%=0.11 since each trial is…

Q: b. If a student selected at random, find the probability that: Selected student is female and spends…

A:

Q: machine manufacturing 0,1,2,3,4,5 defective parts in one day are 0.75, 0.17, 0.04, 0.025, 0.01 and…

A:

Q: The accompanying table describes the random variable x, the numbers of adults in groups of five who…

A: The random variable X defines the numbers of adults in groups of five who reported sleepwalking.

Q: Probability that a passenger will miss a flight is 0.0955. The jet has a capacity of 90 passengers.…

A: Given problem Given that   Probability that a passenger will miss a flight is 0.0955. The jet has…

Q: Find the variance with solution

A:

Q: The following table represents the joint probability distribution of the number of people waiting in…

A:

Q: a. [3] What is the probability that V runs a race in less than 14 seconds? b. [3] What is the…

A: Given:  V , W and P are three independent and normally distributed.  E( V) = 15 E( W)= 16.2 E( P)=…

Q: The accompanying table describes results from groups of 8 births from 8 different sets of parents.…

A: The random variable X defines the number of girls among 8 children. If the random variable X takes…

Q: Find the variance of the number of storms in August.

A: X: Number of thunderstorms in August.

Q: The accompanying table describes results from groups of 8 births from 8 different sets of parents.…

A:

Q: Find the Variance and Standard Deviation of the a. Rafael plays a gambling game where it is possible…

A: Given : a. Outcome Probability -$2.00 0.3 $0.00 0.4 $4.00 0.2 $15.00 0.1   b.…

Q: Find the variance of the probability distribution for the histogram shown.

A: From the given histogram we can create the probability distribution table. Xi probability, p(x)…

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

A:

Q: Find the mean of the given probability distribution. The probabilities that a batch of 4 computers…

A: From the given information we have to find the mean of the probability distribution .Using formula,

Q: Complete parts (a) and (b) below. The number of dogs per household in a small town Dogs 0.…

A: a). The table shows the calculations for the mean: X p(X)p(X) X \cdot p(X)X⋅p(X) 0 0.653 0\cdot…

Q: O births is a significantly low number of girls. ick the icon to view the table. Probability…

A: Given See the handwritten solution

Q: Computer Games The probability that a child. one computer game is one-half as likely as that Pla…

A: Here, the probability of playing one game is one-half of the plying tow computer games, probability…

Q: 5. A researcher surveyed the households in a remote area. The random variable X represents the…

A: Given that  Probability mass function of X is  x 0 1 2 3 4 P(X=x) 0.02 0.18 0.30 0.40 0.10

Q: We have a red and a blue fair 4 sided die. Our random experiment is tosses of both dies…

A: Given:

Q: What is the probability it will take him more than 1020 shots to hit it? f. What is the expected…

A: here given ,  A novice marksman is shooting at a target 1000 feet away. The probability of his…

Q: Find the variance of the probability distribution for the histogram shown.

A: make a table for the values from the histogram as follows  x P(x) 1 0.1 2 0.2 3 0.3 4 0.2…

Q: Find the variance and the standard deviation of the probability distribution. 3. 4 . 6. PN) 0.09…

A:

Q: Interpret the mean. Select the correct choice below and fill in the answer box to complete your…

A: Data is given for  y and its corresponding probability We have to calculate mean and standard…

Q: Returns Probability distribution IBM Dell 0% -10% 10% 10% 10% 50% 20% 30% 40%

A: We have to find the covariance

Q: Leila owns a pizza shop. She determines the number of pizza boxes that are sold per day. Number of…

A: According to the given information, we have Number of boxes (X) Probability P(X) 35 0.10 36…

Q: Number of orders per week  Number of weeks   58  13  72  14  87  21  98  19  112  23…

A: The data shows the number of orders per week.

Q: Do you tailgate the car in front of you? About 30% of all drivers will tailgate before passing,…

A: Given information:The size of the passed-by vehicles is n = 8. It is said that it is a random…

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

A: The probabilities other than the probability of the given combination of x,y  is zero.   P(X=0) =…