A random variable is binomially distributed with n = 16 and π = .40. The expected value and standard deviation of the variables are Multiple Choice   2.00 and 1.24   4.80 and 4.00   6.40 and 1.96   2.00 and 1.20

Q: A random variable is binomially distributed with n= 16 and pi=.40. The expected value and standard…

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

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 103 inches and a…

A: Let us assume X=The lengths of lumber a machine cuts Given that X follows a normal distribution with…

Q: onsider a binomial experiment with n=20 trials and p = 0.40. Find the expected value and the…

A: Given data, n=20 p=0.40

Q: Rods are taken from a bin in which the mean diameter is 8.30 mm and the standard deviation is 0.40…

A: Solution: Let X be the rods taken from a bin and Y be the bearings taken from another bin. From the…

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: Solution: Let X be the length of the steel rod. From the given information, X follows normal…

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 88 inches and a…

A: It is given that the mean is 88 and the standard deviation is 0.3.

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 95 inches and a…

A: a) Given, Mean = 95 Standard deviation = 0.4   The objective is to find the probability that a…

Q: Probabilities of values of X=[10 21 24 27 30], a random discrete variable, are [0.16 0.09…

A: Given Data in tabular form : XX p(X)p(X) 10 0.16 21 0.09 24 0.13 27 0.1 30 0.52 Now,…

Q: The average number of pushups a United States Marine does daily is 300, with a standard deviation of…

A: We have given that  The average number of pushups a United States Marine does daily is 300, with a…

Q: company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: Given data,Mean μ=188.1sd    σ=0.8If n=5P(187.3 cm < M < 188.9 cm) = ?

Q: The random variable x represents the number of credit cards that adults have along with the…

A:

Q: Packages of food whose average weight is 16 ounces with a standard deviation of 0.6 ounces are…

A: Given: n=24,  μ=16, σ=0.6,  x¯=392 The z-score is obtained by the formula:

Q: An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots…

A: Given An engineer is going to redesign an ejection seat for an airplane. The seat was designed for…

Q: X is a normally distributed random variable with mean −25 and standard deviation 4. Find the…

A:

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A:

Q: H & G is a steel bolts manufacturing company. Their current steel bolts have a mean diameter of 135…

A: Given that: X is normally Distributed with mean µ = 135.0 and standard deviation σ = 5.0 By using…

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 95 inches and a…

A:

Q: A public interest group hire students to solicit donations by telephone. After a briefing training…

A:

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A:

Q: An apple juice producer buys all his apples from a conglomerate of apple growers in one northwest…

A: Given,mean(μ)=2.06standard deviation(σ)=0.16

Q: The owner of the small convenience store in the previous question sells two different candy brands.…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Service time for a customer coming through a checkout counter in a retail store is a random variable…

A: Given  μ=2.5σ=3.5n1=45n2=46 Consider, EX¯1-X¯2=μ1-μ2=2.5-2.5=0…

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 97 inches and a…

A: It is given that mean is 97 inches and the standard deviation is 0.3 inch.

Q: q1-Television viewing reached a new high when the Nielson Company reported a mean daily viewing time…

A:

Q: A recent study shows that 18% of adults in the US do not use the Internet. Suppose that 12 adults…

A: (a) Obtain the probability mass function of X. The probability mass function of X is constructed…

Q: A random variable is binomially distributed with n= 16 and n= .40. The expected value and standard…

A: It is given that n = 16 and .

Q: A certain hospital considers “low birth weights” to be those that are less than 5.5 lb. Assume birth…

A: Given data: Mean = 7.6 lb Standard deviation  = 1.53 lb To calculate: The probability, If a birth…

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 99 inches and a…

A: We have to find given probability.

Q: The length of a fully grown plant is normally distributed and has a mean 35cm. It is found that 5%…

A: Solution: (1). Find the standard deviation: Denote the length of a fully grown plant with the random…

Q: (b) (iii) Rods are taken from a bin in which the mean diameter is 8.30 mm and the standard deviation…

A: Solution: Let X be the rods taken from a bin and Y be the bearings taken from another bin. From the…

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: When a random variable follows normal distribution with population mean and population standard…

Q: Male players use a regulation basketball that weighs 22.0 ounces with a standard deviation of 1.0…

A: Given Information: Mean = 22 Standard Deviation = 1

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A:

Q: An HP laser printer is advertised to print text documents at a speed of 18 ppm (pages per minute).…

A: Let us define the variable X as the printing speed is normally distributed with mean 17.5 and…

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 106 inches and a…

A:

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 90 inches and a…

A:

Q: Suppose n = 43 and p = 0.14 Can we approximate p by a normal distribution? Why Yes p can be…

A: It is given that n =42 and p =0.14.

Q: According to the Current Results website, the state of California has a mean annual rainfall of 25…

A: California 25 3 30 New york 36 3 45

Q: A manufacturer fills jars with coffee. The weight of the coffee, W grams, in a jar can be modelled…

A:

Q: ouse at 7:00 a.m. for his office. The time taken to reach the office is normally distributed with…

A: The normal distribution  in the center is generally denser and basically less dense at tails. There…

Q: A recent analysis of the number of rainy days per month found the following outcomes and…

A: Solution x P(x) x*P(x) x2 x2*P(x) 3 0.4 1.2 9 3.6 4 0.2 0.8 16 3.2 5 0.4 2 25 10

Q: The average weekly study time for Biology students is 15 hours. If individual study times are…

A: Given that the average weekly study time for Biology students is 15 hours. Mean = 15 Standard…

Q: Crunchy Biscuits produces golden cream biscuits which are sold in packets. The weights of these…

A: Given that: Mean (u) = 320 g σ   = 10.4 g X follow standard normal distribution P(318< x < 325…

Q: Service time for a customer coming through a checkout counter in a retail store is a random variable…

A: Solution-: Given: Service time for a counter coming through a checkout counter with means…

Q: An apple juice producer buys all his apples from a conglomerate of apple growers in one northwest…

A:

Q: Q4) A capacity of a battery is normally distributed with a mean of 25.2 Kw-hr and standard deviation…

A:

Q: Given a normally distributed random variable X with a mean of 196 and a standard deviation of 20,…

A: Given mean = 196  Standard deviation = 20

Q: One year consumers spent an average of ​$22 on a meal at a resturant. Assume that the amount spent…

A: From the provided information, Mean (µ) = $22 Standard deviation (σ) = $3 X~N (22, 3) Here X be a…

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 97 inches and a…

A: Mean = 97 Standard deviation = 0.7

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.