The mean for annual rainfall in Indianapolis is normally distributed with mean 50 inches and the standard deviation 5.5 inches. What is the probability that the annual rainfall will exceed 55 inches

Q: The mean life of pairs of shoes is 40 months with a standard deviation of 8 months If the life of…

A: The random variable X is the life of shoes It is normally distributed. The mean life of the pair of…

Q: The average life expectancy of computers produced by Ahmadi, Inc. is 6 years with a standard…

A: Solution: Let X be the life expectancy of computers. From the given information, X follows normal…

Q: A variable is normally distributed with mean 10 and standard deviation 3. Find the percentage of all…

A:

Q: A variable is normally distributed with mean 10 and standard deviation 3. Find the percentage of all…

A: Given  μ =10,σ=3 X~N(μ =10,σ2 =32)  We want to find the probability  P(73<X<80)= ?  Note: This…

Q: The weights of men in their 30s are normally distributed with a mean of 190 pounds and a standard…

A: From the provided information, Population mean (µ) = 190 pounds Population standard deviation (σ) =…

Q: The test scores in a class are normally distributed with a mean score of 77. if the standard…

A: The distribution of test score are normally distributed with mean of 77. Now consider the standard…

Q: A teacher says that the top 9​% of the class received an A on the last test. The scores were…

A: Given that the mean is 67 and the standard deviation is 18. That is, μ=67, σ=18 A teacher says that…

Q: The main temperature in Dallas in July for Dallas Texas is 85° assuming a normal distribution what…

A: Let us denote X=the temperature in Dallas in July X follows a normal distribution with mean= 85 and…

Q: After 6 months, what is the probability that the average monthly percentage return will be 1% and 2%…

A: From the information, mean is 1.9% , standard deviation is 0.6% and n is 6.

Q: .. Lori just bought a set of 4 tires for her car. The life of a tire is normally distributed with a…

A:

Q: r. If the 17. A walk at 4 miles per hour burns an average of 300 calories standard deviation of the…

A: Given: μ = 300 σ = 8

Q: A normal distribution has a mean of 175 and a standard deviation of 38. What percent of observations…

A: Given that A Normal distribution has Mean (μ) = 175 Standard deviation (σ) = 38   We know that Z =…

Q: Suppose you have a test with a mean of 66 and a standard deviation of 5. If you first increase…

A: Given Mean =66 Standard deviation=5

Q: The chemical concentration of a particular chemical in a lake is to be measured. Assume it is known…

A: We have to find given probability.

Q: The test scores are normally distributed with a mean of 78 and a standard deviation of 9. If 39…

A: Obtain the probability that the average score is between 80 and 84. The probability that the average…

Q: Suppose that IQ scores have a bell shaped distribution with a mean of 101 and a standard deviation…

A: The IQ scores have a bell shaped distribution with a mean of 101 and a standard deviation of 17.

Q: on jan 15 the temperature is 4 degre standar deviation above the mean what is temperature on jan 15

A: Given that Mean temperature = 16 And SD = 0.5 Let x denote the temperature on Jan 15.

Q: If the scores follow normal distribution with a mean of 120, a standard deviation of 10, find…

A: Solution

Q: When Noah goes bowling, his scores are normally distributed with a mean of 135 and a standard…

A: Let X be the Noah goes bowling, his scores are normally distributed  mean μ=135, standard deviations…

Q: Assume that the amount of time a person experiences cold virus symptoms are normally distributed…

A: Given data Mean = 7.5 days  Standard deviation  = 1.5d days To find: What proportion of cold…

Q: Adding 10 points to every score in a distribution will not change the value of the standard…

A: To add 10 numbers to every score in a distribution will not change the value of the standard…

Q: Today, the waves are crashing onto the beach every 5.4 seconds. The times from when a person arrives…

A: Solution: Let X be the times from when a person arrives at the shoreline until a crashing wave. From…

Q: Suppose that you have a X= 75 on an exam with Ú=70. Which standard deviation would give you a better…

A: Given : Suppose that you have a X= 75 on an exam with Ú=70

Q: 3. The amount dispensed by the coffee machine follow the normal distribution with a mean of 5,286…

A:

Q: A variable is normally distributed with a mean of 100 and a standard deviation of 10. A student…

A: From the given information,   Mean = 100 Standard deviation = 10

Q: In a normal distribution, mean is 60 and standard deviation is 5. How many of the cases have scores…

A: The probability between two specific numbers a and b in a normal distribution with mean μ and…

Q: 1. The length of life of an instrument produced by a machine has a normal distribution with a mean…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Provide all necessary computations and a properly labeled curve in asnwering the following. Sam…

A:

Q: Suppose that iQ scores have a bell shaped distribution with a mean of 103 and a standard devation of…

A: Given: μ=103 and σ=13.   Now, to find where the lowest 32% of IQ scores lie:PZ<z=0.32 Look for…

Q: Imagine you select 30 males at random and find their mean height to be 5 ft 11 in. tall with a…

A:

Q: The average temperature in a town in January is 22.1 oF and the standard deviation is 7.5 pF. What…

A: we have to find average temperature  in Celsius  from given data. given data : mean = 22.1.of…

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: A normal distribution has a mean of 100 and a standard deviation of 2. If 69,146% of the data are…

A:

Q: Assume that women's weights are normally distributed with a mean given by mean=143 lb and a standard…

A:

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.