The weight of cement bags considered to be normally distributed with mean of (50,35 Kg and standard deviation of (1) Kg, determine the probability of the randomly selected bag will weight: Equal 49 Kg Between 48.5 and 51.5 Kg The weight exceeded by 75 % of the bags

Q: The mean yearly rainfall in Sydney, Australia, is about 137 mm and the standard deviation is about…

A: From the provided information, Mean (µ) = 137 mm Standard deviation (σ) = 69 mm

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

A: Solution: Let X be the adults IQ score has normally distributed with mean μ=100 and standard…

Q: The weights of the cement per bag are normally distributed with a mean of 8.16 kg and a standard…

A:

Q: The lengths of brook trout caught in a certain Colorado stream are normally distributed with a mean…

A: Given that :  Mean = 14 inches S. D = 3 inches Here we use standard normal distribution concept…

Q: A succesful basketball player has a height of 6 feet 4 inches or 193 cm based on statisc from data…

A:

Q: The duration of human pregnancies are normally distributed with a mean of 267 days and a standard…

A: X follows a Normal distribution with mean = 267 and S.D = 16 Then z=(x-mean)/SD = (x-267)/16…

Q: Leaf length of a type of flower, in cm, are Normally distributed. It is further given that 0.13 of…

A: The random variable denotes the leaf length of a type of flower in cm, and it is distributed…

Q: A tube of listerine tartar control toothpaste 4.2 ounces. As people use the toothpaste the amount…

A: Given information- We have given that the amount of toothpaste remaining in the tube follows a…

Q: Blood pressure is distribued Normally, with a mean of 85 mm and a standard deviation of 20 mm. As a…

A:

Q: Assume the random variable X is normally distributed with a mean of 50 and a standard deviation of…

A:

Q: The carapace length of an adult is normally distributed with a mean of 17.55 mm and a standard…

A:

Q: The fuel efficiency of cars currently registered in the Commonwealth of Virginia is normally…

A: X follows a Normal distribution with mean = 24 and S.D = 6 Then z=(x-mean)/SD = (x-24)/6  follows…

Q: assume that women's heights are normally distributed with a mean of 63.6 inches and a standard…

A: Mean = 63.6 Standard deviation = 2.5 Sample size = 81

Q: Assume a test in biology is normally distributed with a mean of 80 and a standard deviation of 5.…

A:

Q: The heights of male students is normally distributed with a mean of 170 cm and a standard deviation…

A:

Q: Assume that the hourly cost to operate Saint-Martin Hyundai bus follows the normal distribution with…

A:

Q: The sizes of houses in Kenton County are normally distributed with a mean of 1369 square feet with a…

A: From the given information, the mean and standard deviation are 1,369 and 171.

Q: Go Yankees! 9) Assume that IQ scores of Red Sox fans are normally distributed with a mean of 63.6…

A:

Q: The duration of human pregnancies are normally distributed with a mean of 267 days and a standard…

A: The duration of human pregnancies are normally distributed with a mean of 267 days and a standard…

Q: The time it needs a communications worker to arrange a domestic phone call is normally distributed…

A: It is given that the mean is 50 seconds and standard deviation is 8 seconds.

Q: The heart rate of humans are normally distributed with a mean of 90.3 bpm and std. dev. of 7.3 bpm.…

A:

Q: The weight of male athletes is normally distributed with a mean of 95 kg and a standard deviation of…

A:

Q: The total annual precipitation for a region is approximately normally distributed with a mean of…

A: Given information- Population mean, µ = 1050 mm Population standard deviation, σ = 400 mm Let, X be…

Q: Assume the average amount of caffeine consumed daily by adults is normally distributed with a mean…

A: The detailed solution is as follows below:

Q: A bottle of drinking water fills plastic bottles with a mean of 999 milliliters (mL) and standard…

A: To find the proportion of bottles have volumes between 994 mL and 1004 mL :

Q: Steel rods are manufactured with a mean length of 25 centimeters. Because of variability in the…

A: Given that.   X~N( μ , ?^2 )   μ=25     , ?=0.08   Z-score =( x - μ )/?

Q: Blood pressure is distribued Normally, with a mean of 85 mm and a standard deviation of 20 mm. As a…

A: Where,

Q: probability that a patient recovers from a rare blood disease is 0.4. If 15 people are known to have…

A: Given problem is binomial distribution Let, X: Patient recovers from a rare blood disease p=Prob. of…

Q: Assume the girths (circumferences) of five year old oak trees in the Jefferson National Forest are…

A: Let a random sample of 5year old oak tree is selected. Let x be the no. of oak trees Given…

Q: Fifty students took a Mathematics exam. Assume that their scores formed a normal distribution with a…

A: Solution-: Given: μ=80,σ=4 We find x such that, P[X>x]=0.025

Q: satisfy a maximum height requirement for police officers, what is the maximum weight requirement?

A: