Scores on a certain nationwide college entrance examination follow a normal distribution with a mean of 500 and a standard deviation of 100. Find the probability that a student will score

Q: Assume that adults have IQ scores that are normally distributed with a mean of 96.8 and a standard…

A: Let "X" be the IQ score of the adults.

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

A:

Q: . What is the probability that the student will get into a college whose entrance score is 550?

A:

Q: Scores for a standardized test are normally distributed with a mean of 1200 and a standard…

A: given data μ = 1200σ = 60 normal distributionn = 64P(1200<x¯<1214) = ?

Q: Assume that adults have IQ scores that are normally distributed with a mean of 97.8 and a standard…

A: Given a mean of 97.8 and a standard deviation of 23

Q: A Cuckoo Maran hen lays a mean 300 eggs per year with a standard deviation of 12.7 eggs. The…

A:

Q: IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. Find the IQ…

A: Excel formula: =NORMINV(0.305,0,1)=-0.5100

Q: Bryse is 27 years old. Based on a normal distribution with mean 47.8 years and standard deviation…

A: GivenBryse is 27 years oldx=27Mean(μ)=47.8standard deviation(σ)=12.6

Q: Find the probability that a randomly selected adult has an IQ greater than 129.9.

A: Let X denote the IQ scores. Given that X follows N(mean = 98.6, SD = 18.5), then Z = (X - mean)/SD…

Q: What proportion of skiers will finish the race in exactly one minute?

A: The tume it takes for downhill skiers to finish a race follows a Normal distribution with a mean of…

Q: A normal distribution has a mean of 150 and a standard deviation of 8. Find the z-score for a data…

A: The objective of this question is to find the z-score for a data value of 151 in a normal…

Q: The average GPA at a college is 2.79 with a standard deviation of 0.6. Find the probability that 7…

A: Let X, be the random variable of average GPA at a college follows Normal distribution with a mean…

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: Assume that adults have IQ scores that are normally distributed with a mean of 95.9 and a standard…

A: Given: Mean μ = 95.9 Standard deviation σ = 15.6 Formula Used: Z-score: Z = X-μσ

Q: The amount of daily sales of a candy shop in weekdays is approximately normally distributed with a…

A: Let us denote: X=the amount of daily sales of a candy shop in weekdays Given that X follows a normal…

Q: The average length of crocodiles in a swamp is 11 feet. If the lengths are normally distributed with…

A: Given: μ = 11 σ = 1.5 Formula Used: Z = X-μσ

Q: A​ bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean…

A: It is given that the ratings are normally distributed with mean 200 miles and standard deviation 50.

Q: the amount of snowfall falling in a certain mountain range is normally distributed with a mean of 88…

A: It is given that the normal distribution has a mean, μ=88 and the standard deviation, σ=16. The…

Q: Adult Golden Retrievers have a mean weight of 64 pounds with a standard deviation of 8 pounds. If…

A: In this scenario, it is known that the  mean weight is 64 pounds with a corresponding standard…

Q: The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of…

A: Given: mean = 0.963 grams, standard deviation = 0.312 grams. The z-score follows standard normal…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 104.7 and a standard…

A: It is given that the IQ score follows normal distribution with mean 104.7 and standard deviation…

Q: The average salary of recent graduates with bachelor’s degrees in chemical engineering is $53,600…

A: Population mean (μ): $53,600Population standard deviation (σ): $3,200Sample size (n): 30Sample mean…

Q: College students average 8.4 hours of sleep per night with a standard deviation of 35 minutes. If…

A:

Q: Brenda has collected data to find that the finishing times for cyclists in a race has a normal…

A: Given the finishing time for cyclists in a race has normal distribution with mean 143 minutes and…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 98.1 and a standard…

A: Answer:- Given, IQ scores(X) are normally distributed with mean, μ = 98.1 and standard deviation, σ…

Q: The grades of a statistics midterm are normally distributed with a mean of 79 and a standard…

A: Normal distributionμ=79σ=3.5pgrade between74 and 80=?

Q: A normal distribution has a mean of 87 and a standard deviation of 10. Find the z-score for a data…

A: Given that, Mean = 87 Standard deviation = 10

Q: Scores on a Registered Nurse (RN) aptitude exam are normally distributed with a mean of 72 and a…

A: Given,Population mean(μ)=72Population standard deviation(σ)=8

Q: On a mathematics test in a high school, scores are normally distributed with a mean of 77 and a…

A: Given that.   X~N( μ , ?^2 )   μ=77     , ?=16.8   Z-score =( x - μ )/?

Q: e time taken to complete an exam folows a normal probability distribution with a mean of 60 minutes…

A: