mean equal to 800MPA and a standard deviation of 40 MPa before it reaches yielding. Find the probability that the steel is in between 778 MPa and 834

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

A: Solution: Let X be the IQ score of an adult. From the given information, X follows normal…

Q: Five hundred children participated in a field demonstration. Their heights averaged 110cm with a…

A:

Q: The mean systolic blood pressure of men between the ages 20 and 24 is 124 with a standard deviation…

A:

Q: The average height of flowering cherry trees in a nursery is 10.5 feet.  If the heights are normally…

A: Mean = 10.5 Standard deviation = 1.5

Q: The mean is 15.2 and the standard deviation is 0.9. find the probability that X is greater than 17.

A:

Q: Find the probability that x is greater than 15.2 when the mean is μ = 15.2 and the standard…

A:

Q: Books in the library are found to have an average length of 350 pages with a standard deviation of…

A: Mean = u = 350 sigma = 100

Q: In a sample of 250 student GPAs, the mean is 3.25 with a standard deviation of 0.22. Use the…

A: From the given information, there are 250 student GPAs with the sample mean 3.25 and the standard…

Q: Assume that readings on thermometers are normally distributed with a mean of 0 and a standard…

A:

Q: The average yearly consumption of water per person in Lebanon is 150 liters with a standard…

A: Given data: Mean (μ)  = 150 liters  Score (x) = 200 Given probability  = 0.2206 To find: Standard…

Q: Find the standard deviation. Give your answer to at least 3 decimal places

A: Given: Age, x freq, f 15 2 16 2 17 37 18 9

Q: The chloride concentration in the blood (mmol / liter) averages 104 with a standard deviation of 5.…

A: Given Data: Let X represent the random variable   X~ Normal (104, 52) n=200 Therefore, X¯ ~ Normal…

Q: Assume the readings on thermometers are normally distributed with a mean of 0 degrees Celsius and a…

A: We have to find out given probability..

Q: Imagine the average score on an exam ends up being 71 with a standard deviation of 10. If scores are…

A: From the given information, let us define the random variable X as the scores of an exam follows…

Q: The mean is µ = 60.0 and the standard deviation is Η = 4.0.Find the probability that X is less than…

A: Given datamean (µ) = 60.0 standard deviation (σ) = 4Assuming X follows normal…

Q: The mean is μ=60.0 and the standard deviation is σ=4.0. Find the probability that X is less than…

A: From the provided information,

Q: Find the standard deviation of the reaction times. 0.7

A: Let X denote the reaction times of a drug. We have to calculate the SD of sample of size n = 12

Q: The average score of this quiz is 24 points with a standard deviation of 1.5 points. What is the…

A: Let us assume that X=score of a quizX follows a normal distribution with mean=24 and standard…

Q: The average retail price of gasoline (all types) for the first half of 2005 was 212.2 cents. What…

A: Given that, The average retail price of gasoline (all types) for the first half of 2005 was 212.2…

Q: Eight independent measurements were made along a line and the standard deviation was found to be…

A: Eight independent measurements were made along a line.

Q: the physician places the dispensed. Assume the standard deviation is o=11 minutes. What is the…

A: Given information Mean = 35 minutes Standard deviation = 11 P(x>15 minutes)= ? Z score formula…

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: Scores on a certain standardized test have a mean of 500, and a standard deviation of 50. How common…

A: Given: Meanμ=500 Standard Deviationσ=50 The probability that the score is between 350 and 400 is…

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

A: Given information Mean (µ) = 98.6 F Standard deviation (σ) = 0.73 F   Probability of a healthy adult…

Q: The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances…

A:

Q: The mean is μ =137 and the standard deviation is σ = 5.3, Find the probability that X is between…

A:

Q: The mean is µ=15.2 and the standard deviation is σ=0.9. Find the probability that X is greater than…

A:

Q: Solve the problem. Assume that mountain lions' weights are normally distributed with a mean of 62.6…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 62.6 ,…

Q: The average on quiz score is 4 with a standard deviation of only 0.385. What are the chances that…

A: Given that mean=4 and standard deviation= 0.385 Let, X= quiz score  X follows normal distribution…

Q: The average yearly consumption of water per person in Lebanon is 120 liters with a standard…

A: Given data,μ=120P(X>200)=0.2296σ=?

Q: The weights of steers in a herd are distributed normally. The standard deviation is 200lbs and the…

A:

Q: The mean of fifty sales receipts is $65.75 and the standard deviation is $10.55. Using Chebyshev’s…

A: Here, The mean of fifty sales receipts is $65.75 and the standard deviation is $10.55. Chebyshev’s…

Q: The average number of pounds of meat that a person consumes per year is 218.4 pounds. Assume that…

A: Given: X~N(μ,σ)μ=218.4σ=25n=40

Q: The lengths of time spent )in a store are normally distributed with an average of 50 minutes and a…

A: A distribution is called normally distributed if the curve has bell shape and symmetric about the…

Q: The probability that a randomly chosen student in a statistics class submits his/her homework on…

A: X~Bin(n=46, p=0.39)

Q: The probability that a randomly chosen student in a statistics class submits his/her homework on…

A:

Q: The length of a ball pen is known to be normal with mean 5 inches with a standard deviation of 0.1…

A: Given: Population Mean (\mu)(μ) = 805 Population Standard Deviation (\sigma)(σ) = 1.70.1

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

A: Given: p = 0.4 q = 0.6 n =10

Q: The mean is μ = 15.2 and the standard deviation is σ = 0.9 Find the probability that X is greater…

A:

Q: The standard deviation is (Round the final answer to the nearest hundredth as needed. Round all…

A: Standard deviation for a set of data is given by,  sd = 1n∑(Xi-X¯)2i=1n where, X¯ = 1n∑Xii = 1n

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

A: Given Mean=100 Standard deviations=15

Q: The mean is μ = 15.2 and the standard deviation is σ = 0.9 find the probability that X is greater…

A: Given,Mean (μ) = 15.2Standard deviation (σ) = 0.9

Q: The average score of all golfers for a particular course has a mean of 74 and a standard deviation…

A: Here we need to find the required probability.

Q: The average score of all golfers for a particular course has a mean of 72 and a standard deviation…

A: We want to find the probability by using standard normal distribution table

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

A: Given that.   X~N( μ , ?^2 )   μ=100     , ?=15   Z-score =( x - μ )/?

Q: The mean gestation period of humans is 266 days with a standard deviation of 16 days. Find the…

A: Given data: μ=266σ=16

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

A: Given data, p=0.4 n=10 sd=?

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.