A distribution of values is normal with a mean of 155.5 and a standard deviation of 52.1. Find the probability that a randomly selected value is less than 181.6. P(X < 181.6) = Incorrect Enter your answer as a number accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

Q: distribution of values is normal with a mean of 230.4 and a standard deviation of 68.7. Find P90,…

A: Given that.   X~N( μ , ?)   μ=230.4     , ?=68.7   Z-score =( x - μ )/?

Q: A mandatory competency test for high school sophomores has a normal distribution with a mean of…

A: Suppose a random variable X, defines the scores in competency test for high school sophomores.

Q: A distribution of values is normal with a mean of 187.4 and a standard deviation of 60.8. Find P60,…

A: Consider a random variable "X".

Q: A distribution of values is normal with a mean of 113.3 and a standard deviation of 41.3. Find Pg9,…

A:

Q: distribution of values is normal with a mean of 204.7 and a standard deviation of 17.7. Find P87,…

A: Given that  A distribution of values is normal with a mean of 204.7 and a standard deviation of…

Q: A distribution of values is normal with a mean of 184.7 and a standard deviation of 44.5. Find the…

A:

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

A: According to the given information, we have Mean = 5 minutes Standard deviation = 1 minutes

Q: A distribution of values is normal with a mean of 162.7 and a standard deviation of 51.6. Find P38,…

A: Given ,A distribution of values is normal with a mean , 162.7 and standard deviation , 51.6We have…

Q: Scores on a test have a mean of 86 and a standard deviation of 13. Jerrica has a score of 94.…

A:

Q: Yoga mats have lengths with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…

A: Given,mean(μ)=69.0standard deviation(σ)=2.8

Q: A distribution of values is normal with a mean of 176.9 and a standard deviation of 44.3. Find P38,…

A: The provided information are: Population mean (µ) = 176.9 Population standard deviation (σ) = 44.3

Q: A distribution of values is normal with a mean of 237.9 and a standard deviation of 28. Find P90,…

A: From the provided information,

Q: A distribution of values is normal with a mean of 137.2 and a standard deviation of 46.9. Use exact…

A: From the provided information, Mean (µ) = 137.2 Standard deviation (σ) = 46.9 X~N (137.2, 46.9)

Q: A distribution of values is normal with a mean of 189.6 and a standard deviation of 68.6. Find the…

A: Refer to Standard normal table/Z-table to find the probability of z= 1.5.ORUse excel formula…

Q: A distribution of values is normal with a mean of 61.7 and a standard deviation of 93.3. Find P4,…

A:

Q: A distribution of values is normal with a mean of 91.5 and a standard deviation of 5. Find the…

A: Normal distribution

Q: A sample of 3000 observations has a mean of 88 and a standard deviation of 13. The distribution is…

A: Solution :  Given:   n   = 3000 samples              x¯   = 88               s   = 13 For bell…

Q: A test score of 48.4 on a test having a mean of 66 and a standard deviation of 11. Find the ​z-score…

A:

Q: A distribution of values is normal with a mean of 141.6 and a standard deviation of 44. Find P65,…

A: Given Information: Mean μ=141.6 Standard deviation σ=44 To find Percentile P65: Using a standard…

Q: A distribution of values is normal with a mean of 103.6 and a standard deviation of 63.6. Find P62,…

A:

Q: A distribution of values is normal with a mean of 20.1 and a standard deviation of 34.7. Find P21,…

A: Normal Distribution: A continuous random variable X is said to follow Normal distribution with…

Q: A distribution of values is normal with a mean of 18.5 and a standard deviation of 31.5. Find P58,…

A: Where,

Q: A distribution of values is normal with a mean of 211.5 and standard deviation of 94.7. Find P3,…

A: mean = 211.5 , stdev = 94.7

Q: The percent of fat calories that a person in America consumes each day is normally distributed with…

A: Let  be the percent of fat calories that a person in America consumes each day.The random variable…

Q: Choose the corect time-series graph below OA OB. Oc. 70 70 My 199 1997 2005 1989 1997 2005 1989 1997…

A: Given Year and Median earnings  Find the trend and how does it affect women .

Q: A distribution of values is normal with a mean of 22.1 and a standard deviation of 51.3. Find…

A:

Q: A distribution of values is normal with a mean of 178.9 and a standard deviation of 78.7. Find P37…

A: Given Data : Population Mean,μ = 178.9 Population Standard Deviation,σ = 78.7

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: To qualify for a police academy, applicants are given a test of physical fitness. The scores are…

A: Given : mean (μ ) = 62 standard deviation (σ) = 7                                  σ²  = 49

Q: mandatory competency test for high school sophomores has a normal distribution with a mean of  425…

A: Given that.   X~N( μ , ?)   μ=425     , ?=83   Z-score =( x - μ )/?

Q: The cost of unleaded gasoline in the Bay Area once followed an unknown distribution with a mean of…

A: The question is about sampling distributionGiven :Mean cost of unleaded gasoline (  ) =…

Q: The delivery times for Uber eats is normally distributed with a mean of 45 minutes and a standard…

A: From the provided information,

Q: The heights of the peach trees in an orchard are normally distributed with a mean of 12.5 feet and a…

A:

Q: A mandatory competency test for high school sophomores has a normal distribution with a mean of 495…

A:

Q: t distance? calculate this probability? ate the result. If there is more than one z-score, a. Is.…

A: We have given that theMean(µ) = 269Standard deviations (σ) = 71

Q: A distribution of values is normal with a mean of 218.9 and a standard deviation of 54. Find P28,…

A: The mean is 218.9 and the standard deviation is 54.

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

A: Here, mean is 5 and standard deviation is 3. We will use z-standard normal distribution.

Q: A random sample of 43 cars in the drive-thru of a popular fast-food restaurant revealed an average…

A: given data n = 43x¯ = 19.65σ = 5.7696% ci for μ = ?

Q: A distribution of values is normal with a mean of 188.4 and a standard deviation of 57. Find the…

A: given data normal distributionμ = 188.4σ = 57P(x&gt;120) = ?

Q: A distribution of values is normal with a mean of 95.4 and a standard deviation of 21.3. Find the…

A: From provided information, X~N (µ=95.4, σ2=21.32)

Q: A distribution of values is normal with a mean of 134.3 and a standard deviation of 92. Find P16,…

A: P16 is the score separating the bottom 16% from the top 84%. this is the 16th percentile.

Q: A distribution of values is normal with a mean of 110.3 and a standard deviation of 38.7. Find P57,…

A: Given, mean = 110.3 standard deviation = 38.7

Q: The scores on a test are normally distributed with a mean of 150 and a standard deviation of 30.…

A: The normal distribution:A continuous random variable X is said to follow normal distribution if the…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 99.9 and a standard…

A: Given that, Mean = 99.9 Standard deviation = 24.5

Q: A distribution of values is normal with a mean of 6.9 and a standard deviation of 43.5. Find P711…

A: Given Information: Mean (u) = 6.9  Standard deviation (s) = 43.5  To find: 71st percentile

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.