Let X represent the full height of a certain species of tree. Assume that X has a normal probability distribution with a mean of 31.7 ft and a standard deviation of 43.3 ft. Find the probability that the height of a randomly selected tree is between 66.3 ft and 140 ft. Enter your answer as a number accurate to 4 decimal places.

Q: distribution with a mean of 6.3 and a staridard deviation of 0.4. Find the percent of data within…

A: As per Bartleby guideline if more than three subparts are asked only first three to be answered…

Q: Los Angeles workers have an average commute of 34 minutes. Suppose the LA commute time is normally…

A: a) Mean= 34 Standard deviation = 15  So, variance= 152= 225 X~N(mean, variance)=N(34,225)…

Q: Private nonprofit four-year colleges charge, on average, $27,845 per year in tuition and fees. The…

A: Given mean= 27845  Standard deviation = 6534  So, variance= 65342=42693156   Answer(a):…

Q: The mean amount of time it takes a kidney stone to pass is 15 days and the standard deviation is 6…

A: It is given that the mean and the standard deviation are 15 and 6, respectively.

Q: Continuous distribution. Draw a bell shaped curve to show the x and z values and the probability…

A: The objective of this question is to find the probability that male students have a height between…

Q: The number of ants per acre in the forest is normally distributed with mean 42,000 and standard…

A:

Q: Suppose that the speed at which cars go on the freeway is normally distributed with mean 76 mph and…

A:

Q: A bus comes by every 7 minutes. The times from when a person arives at the busstop until the bus…

A: The mean would be midpoint between the ends. μ = (0 + 7 )/2 = 3.5 minutes

Q: 10. What is the probability that a randomly selected Christmas tree has more than 16 candy canes? A.…

A:

Q: hts per a 12,370. Let X = number o places where possible.

A: Here it is given that X denotes the no of ants in a randomly selected acre of a forest. Mean (μ) =…

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

A:

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: From the provided information, Mean (µ) = 0 Standard deviation (σ) = 1 Let X be a random variable…

Q: Sketch the distribution, show the mean and standard error, and shade the part of the curve…

A: It is given that, n = 200 and p = 0.34.

Q: The accounting department at Weston Materials, Inc., a national manufacturter of unattached garages,…

A:

Q: The average number of words in a romance novel is 64,315 and the standard deviation is 17,381.…

A:

Q: The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 66…

A: Given : X~Nμ=66,σ=17

Q: professor at a local university finds that the mean exam grade for her students is 73 with a…

A: A professor at a local university finds that the mean exam grade for her students is 73 with a…

Q: The time spent waiting in the line is approximately normally distributed. The mean waiting time is 5…

A: given data,normal distribution μ=5σ=3probability that person will wait more than 9 minutes =?

Q: The average THC content of marijuana sold on the street is 10.8%. Suppose the THC content is…

A: Given, mean= 10.8  Standard deviation= 1 So, variance= 12=1 So, X~N(mean,variance)= N(10.8,1)…

Q: Assume that a randomly selected subject is given a bone density test. Bone density test scores are…

A: Obtain the 7th percentile of the distribution.   The 7thpercentile of the distribution is obtained…

Q: How do I do this problem?

A: Solution: Let X be the IQ score. From the given information, X follows normal distribution with mean…

Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…

A:

Q: The weights of men in a certain region are normally distributed with a mean of 192 lbs., and a…

A: Given: Let μ denote the population mean of weights of men in a certain region (μ=192 lbs). Let σ…

Q: Continuous distribution. Draw a bell shaped curve to show the x and z values and the probability…

A: The objective of this question is to find the probability that a male student's height falls between…

Q: The blood sugar levels of a person follows a normal curve with an average of 4.7mmol/L and a…

A:

Q: The average American man consumes 9.7 grams of sodium each day. Suppose that the sodium consumption…

A:

Q: decimal places as needed.)

A: According to the scenario, it is assumed that adults have IQ scores that are normally distributed…

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: Given that μ=0 and σ=1 Consider, P(x>0.83)=P(x-μσ>0.83-μσ)                  =P(z>0.83-01)…

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.