P(x) 0.05 0.1 2 0.3 3 0.55 Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal places

Q: Find the standard deviation, o, of this probability distribution. X P(X) 0123 J = 0.05 0.2 0.15 0.6…

A: Given that  X 0 1 2 3 P(x) 0.05 0.2 0.15 0.6

Q: The probability that a person catches a cold during the cold and flu season is 0.4. Assume that 10…

A: According to the given information, we have Probability, p = 0.4 Sample size, n = 10

Q: X P(x) 3 0.25 0.3 9. 0.1 12 0.35 Find the mean and standard deviation of this probability…

A: Solution

Q: (a) Find the mean of p. (b) Find the standard deviation of p. (c) Compute an approximation for P…

A:

Q: P(x) 0 0.05 0.15 2 0.25 3 0.55 Find the standard deviation of this probability distribution. Give…

A: Solution: 0 0.05 0 0 0 1 0.15 0.15 1 0.15 2 0.25 0.5 4 1 3 0.55 1.65 9 4.95…

Q: An insurance salesperson sells an average of 4.90 policies per day. Let x denote the number of…

A:

Q: Empirical research on stock market data for two consecutive trading days indicates that 40% of the…

A:

Q: Empirical research on stock market data for two consecutive trading days indicates that 60% of the…

A: Given,n=600p=0.60

Q: Full-time Ph.D. students receive an average of S12,837 per year. If the average salaries are…

A: Given information- Average, μ = $12,837 Standard deviation, σ = $1500 We have to find what…

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

A: Given,standard deviation (σ)=npq=18and q=13

Q: X P(x) 0 0.32 1 0.31 2 0.20 3 0.17 a) Find the mean of the probability distribution above. b) Find…

A: Given that  Probability distribution.  X 0 1 2 3 P(x) 0.32 0.31 0.20 0.17

Q: xx P(x)P(x) 0 0.2 1 0.05 2 0.1 3 0.65 Find the standard deviation of this probability…

A: From the provided information, x P (x) 0 0.2 1 0.05 2 0.1 3 0.65

Q: (a) Find the mean of p, where p is the proportion of people with IQ scores over 100 in a random…

A:

Q: P(x) 0.05 1 0.2 0.2 0.55 Find the standard deviation of this probability distribution. Give your…

A:

Q: X P(x) 2 0.15 6 0.15 0.1 12 0.6 Find the mean and standard deviation of this probability…

A:

Q: P(x) 0.25 0.3 0.15 3 0.3 Find the standard deviation of this probability distribution. Give your…

A: Standard deviation=1.162

Q: P(x) 0.15 0.3 2 0.05 0.5 . Find the expected value of the probability distribution. Round to two…

A: We have given that  Sample size n= 139 Mean = 125.3  Standard deviation = 60.12

Q: set of scores. 4. On the average, teenagers spend 7.4 hours sleeping at night, witha standard…

A: Given Data : Population Mean,μ = 7.4 Population Standard Deviation,σ = 1.3

Q: The probability that a person catches a cold during the cold and flu season is 0.4. Assume that 10…

A: Solution: Let X be the number of people catching a cold. From the given information, probability…

Q: find the standard deviation

A: Here, n = 48p = 35q= (1-p) = (1-35) = 25

Q: X P(x) 0 0.2 B 1 0.3 2 0.1 3 0.4 Find the standard deviation of this probability distribution. Give…

A: Given data is x P(x) 0 0.2 1 0.3 2 0.1 3 0.4

Q: P(x) 0.05 1 0.3 2 0.2 3. 0.45 Find the standard deviation of this probability distribution. Give…

A: Solution 0 0.05 0 0 0 1 0.3 0.3 1 0.3 2 0.2 0.4 4 0.8 3 0.45 1.35 9 4.05

Q: P(x) 0 0.15 1 0.05 2 0.05 3 0.75 Find the standard deviation of this probability distribution. Give…

A:

Q: The lifetime of a certain battery is normally distributed with mean value of 10 hours and standard…

A:

Q: In a normal distribution, x = 6 and z = 1.25. This tells you that x = 6 is ____ standard deviations…

A: It is given that Value x = 6 Z-score = 1.25

Q: Value of X 3 4 5 6 Probability 0.07 0.25 0.28 (a) The probability for X = 4 is missing. What is it?…

A: Since, the sum of all probabilities of a distribution is equal to 1. That is ∑P(x) = 1 a) The…

Q: Full-time Ph.D. students receive an average of $12,837 per year. If the average salaries are…

A: Given that ; μ = $ 12837 ? = $ 1500 X = $ 17000 To find P( x < 17000) =  ? ?  P( x > 17000) =…

Q: (d) Obtain the mean value of headway and the standard deviation of headway. (Round your standard…

A: The mean of the distribution is given by: μx=∫-∞∞xfxdx=∫1∞9xx10dx=9-8x-81∞=-981∞8-118=1.125 So the…

Q: If a fair coin is tossed 25 times, the probability distribution for the number of heads, X, is given…

A: As mentioned in the question, I will use excel to solve this question.…

Q: P(x) 0.15 1 0.3 0.1 3 0.45 2 Find the standard deviation of this probability distribution. Give your…

A: Answer - The Probability              x P(x) 0 0.15 1 0.3 2 0.1 3 0.45

Q: Empirical research on stock market data for two consecutive trading days indicates that 50% of the…

A: We have to find given probability

Q: P(x) 0 0.25 1 0.05 2 0.2 3 0.5 Find the standard deviation of this probability distribution. Give…

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

Q: C. Calculate the standard deviation of this distribution by hand, correct to 4 decimal places. d. If…

A:

Q: Empirical research on stock market data for two consecutive trading days indicates that 60% of the…

A: Solution:  Given information:  n= 600 Sample size  p= 0.60 Population proportion

Q: a) 0.1312 b) 0.0475 c) 0.9525 d) 0.3312 Find the indicated probability. 25. The average number of…

A:

Q: P(x) 0.05 1 0.1 0.25 3 0.6 Find the standard deviation of this probability distribution. Give your…

A: E(X)=∑ixip(xi)E(X)=0×0.05+(1×0.1)+(2×0.25)+(3×0.6)E(X)=0+0.1+0.5+1.8E(X)=2.4

Q: Empirical research on stock market data for two consecutive trading days indicates that 60% of the…

A: Given,n=600P=0.60

Q: Q/ The test score of a physics class with 800 students are distributed normally with a mean of 75…

A: Let X be the test scores of physics class Given that: X~Normalμ=75, σ=7 a) Percentage of class…

Q: P(x) 0. 0.05 0.15 0.3 0.5 Find the standard deviation of this probability distribution. Give your…

A: Given x P(x) 0 0.05 1 0.15 2 0.3 3 0.5

Q: Current Attempt in Progress Find the mean and standard deviation for the following probability…

A: Introduction: The random variable of interest is X, and the probability distribution of X is given,…

Q: X is a normally distributed random variable with a mean of 22 and a standard deviation of 5. The…

A:

Q: P(x) 0.25 1 0.3 0.05 0.4 Find the standard deviation of this probability distribution. Give your…

A: Given x P(x) 0 0.25 1 0.3 2 0.05 3 0.4 Total 1

Q: X P(x) 0.15 1 0.25 2 0.3 3 0.3 Find the standard deviation of this probability distribution. Give…

A:

Q: Automobile Workers A worker in the automobile industry works an average of 42.2 hours per week. If…

A: Obtain the probability that a randomly selected automobile worker works less than 40 hours per week.…

Q: P(x) 0.3 0.05 0.1 0.55 Find the standard deviation of this probability distribution. Give your…

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

Q: Empirical research on stock market data for two consecutive trading days indicates that 60% of the…

A:

Q: The lengths of human pregnancies are normally distributed with a mean of 268 days and a standard…

A:

Q: The monthly return of a particular stock follows the normal distribution with mean 0.01 and standard…

A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…

Q: P(x) 0. 0.25 1 0.1 0.15 3. 0.5 Find the standard deviation of this probability distribution. Give…

A: Probability distribution table is given.

Q: At a certain university, the probability that an entering freshman will graduate within 4 years is…

A: NORMAL APPROXIMATION to BINOMIAL DISTRIBUTIONthe PDF of normal distribution is = 1/σ * √2π * e ^…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.