If X is binomial with n=10 and p = .4 then the standard deviation of X is?

Q: a. What is the probability that the sample mean will be within +/- 4 of the population mean (to 4…

A: Given Data Population Mean,μ = 200.0 Population Standard Deviation,σ = 90.0 sample…

Q: Assume that adults have IQ scores that are normally distributed with a mean of mu equals 105   and…

A:

Q: If I have a mean of 60 dollars and a standard deviation of 10 dollars how would I find the IQR.  I…

A: Given Information Mean µ = 60 Standard deviation σ = 10 The curve follows Normal Distribution…

Q: SAT scores in one state is normally distributed with a mean of 1523 and a standard deviation of 184.…

A:

Q: 14. A researcher claimed that for people that smoke cigarettes, the average number of cigarettes…

A: Given  n=36 x¯=10σ=2.5α=0.05

Q: Find the F-test statistic to test the claim that the variances of the two populations are equal.…

A:

Q: y salaries of college students in a large city are normally distributed with a mean of 990 dollars…

A: Given: μ=990, σ=45 The corresponding z score is calculated as:

Q: A sample of n = 25 observations is to be drawn from a population that is normally distributed with a…

A:

Q: Scores for a common standardized college aptitude test are normally distributed with a mean of μ =…

A: The objective of this question is to find the probability of a single person scoring at least 536.3…

Q: SAT scores in one state is normally distributed with a mean of 1532 and a standard deviation of 200.…

A: GivenMean(μ)=1532standard deviation(σ)=200sample size(n)=50

Q: Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard…

A: It is given that  Mean, μ = 100 Standard deviation, σ = 15

Q: SAT scores in one state is normally distributed with a mean of 1537 and a standard deviation of 64.…

A: Where,

Q: Body temperatures of adults are normally distributed with a mean of 98.60◦ F and a standard…

A: Given that body  temperatures of adults are normally distributed with a mean of 98.60◦ F and a…

Q: Americans receive an average of 16 Christmas cards each year. Suppose the number of Christmas cards…

A: Let X be the number of Christmas cards received by a randomly selected American. The random variable…

Q: The time needed for university students to complete a quick math test follows a normal distribution…

A: The objective of this question is to perform a hypothesis test to determine whether the mean time to…

Q: V fall between - to 99 and to 9g because to 99 = The t-value of t= (Round to two decmal places as…

A:

Q: An automobile company is looking for fuel additives that might increase gas mileage. Without…

A: Given information- Sample size, n = 40 Sample mean, x-bar = (17+0.75) mpg Population standard…

Q: A particular fruit's weights are normally distributed, with a mean of 525 grams and a standard…

A:

Q: Let x denote the time taken to run a road race. Supposex is approximately normally distributed with…

A: Ans: Given,   X ~ N(μ, σ)        Where  μ  = 190 minutes   and σ  = 21 minutes        Find  P( 219…

Q: The life of a certain company's CD players is normally distributed with a mean of 4.1 years and a…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ=100and a standard…

A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 20 Let X be a random variable…

Q: A set of scores that is transformed into z-scores will result in standardized distribution of…

A: Normal Distribution: A continuous random variable Z is said to follow Standard Normal distribution…

Q: Assume that adults have IQ scores that are normally distributed with a mean of mu equals 100μ=100…

A: The probability that a randomly selected adult has in IQ between 84 and 116 is obtained below:Let X…

Q: The scores on a certain test are normally distributed with a mean score of 65 and a standard…

A: The random variable score follows normal distribution. The population mean is 65. The population…

Q: A carpet company advertises that it will deliver your carpet within 16 days of purchase. A sample of…

A: From the information, given the claim is to test whether the advertisement is legitimate or not.…

Q: Assume that adults have IQ scores that are normally distributed with mean of mu = 100 and a standard…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of mμ=100 and a standard…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ=105 and a standard…

A:

Q: Find the probability that a single randomly selected value is less than 18. P(X < 18) = Find the…

A: The probability that a single randomly selected value is less than 18 is,…

Q: A random sample of n=4 is obtained from a population with a mean of u=80 and a standard deviation of…

A: It is given that the, A random sample of n=4 is obtained from a population with a mean of u=80 and a…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.