Find the probability that a randomly selected high school student who took the reading portion of the test has a score that is between 14.5 and 29.3.

Q: On a statistics exam, the mean score was 80 and there was a standard deviation of 7. If a student's…

A: Given data, μ=80σ=7If x=92z=?

Q: A statistics professor gave a final exam to a class of 30 students. The exam scores are normally…

A: Given,mean(μ)=75standard deviation(σ)=10

Q: A college conducts a common test for all the students. For the Math portion of this test, the scores…

A:

Q: The math department at a university gives all of the students in a certain math class the same final…

A: Let  denote the student score receive in the final exam.The random variable  follows a normal…

Q: According to a magazine, people read an average of more than three books in a month. a. To test the…

A: Given,   Sample size = 25 Sample mean = 2.9 Sample standard deviation = 1.26

Q: The distribution of scores for the third exam in a statistics course has a mean of 74 and a standard…

A: Given Information: Mean, μ=74 Standard Deviation, σ=15 Sample Size, n=36

Q: The time it takes a computer repair company to diagnose a computer follows a normal distribution…

A: Given data  X = time taken for computer repair company to diagnose a computer μ=50   σ=12…

Q: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: statistics professor reported that the mean score in a recent quiz is 72 and the standard deviation…

A: Solution

Q: A flu test shows that about 31% of 90 patients visited hospital in the first week of January had…

A: Given that  n = 90 , p = 31% = 0.31 , q = 1 - p = 1 - 0.31 = 0.69 X ~ Binomial (n = 90 , p = 0.31) X…

Q: A gym class is taking a fitness test. The gym teacher is recording how many sit-ups the participants…

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Q: Suppose that prices of women’s athletic shoes have a mean of $75. and a standard deviation of…

A: Given information- Mean, μ = $75 Standard deviation, σ = $17.89 Sample size, n = 50 We have to…

Q: The golf scores for a school team were normally distributed with a mean of 72 and a standard…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: In a recent year, grade 7 Maryland State public school students taking a mathematics assessment test…

A: In a recent year, grade 7 Maryland State public school students taking a mathematics assessment test…

Q: The average score of all golfers for a particular course has a mean of 75 and a standard deviation…

A: Let is denote X=the score of a golfern=sample size=81X has mean=75 and standard deviation=4.5So, X¯…

Q: The amount that people pay for their cellphone service is normally distributed with a mean of $136…

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Q: An individual golfer's scores have a mean of 90.4 and a standard deviation of 5.3. What is the…

A:

Q: Find the probability that the mean of a randomly chosen sample of 25 students scores is between 72.3…

A:

Q: Professor Ivy’s students have a Mean grade of 69.5 and a Standard Deviation of 6.5.  If Johnny has…

A: From the provided information, Mean (µ) = 69.5 Standard deviation (σ) = 6.5 Let X be a random…

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

A:

Q: A presidential candidate's aide estimates that, among all college students, the proportion p who…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: If the mean score on a math quiz is 12.6 and 38.2​% of the students in your class scored between…

A: Mean = 12.6 area between 11.1 and 14.1 is 38.2%

Q: The golf scores for a school team were normally distributed with a mean of 68 and a standard…

A: Normal distributionPopulation mean : Population standard deviation : The probability that a golfer…

Q: A student scored 66 on a general science test where the class mean and standard deviation were 82…

A:

Q: The monthly earnings of computer systems analysts are normally distributed with a mean of $4,300. If…

A: Given that  Population mean =4300 Row score =6140 Z-score =( x - μ )/?

Q: The salary for workers at a company are normally distributed with a mean of $60,000 and a standard…

A:

Q: In a recent year, grade 7 Maryland State public school students taking a mathematics assessment test…

A: We have given that,  Let X be the random variable from normal distribution with mean (μ) = 230 and…

Q: A set of scores in Statistics examination is approximately normally distributed with a mean of 74…

A: Given: The value of mean is, μ=74. The value of standard deviation is, σ=7.9. The objective is to…

Q: A random sample of 120 cars in the drive-thru of a popular fast food restaurant revealed that the…

A: Given: n=120,x=29.27,σ=6.17,α=1-0.82=0.18

Q: A successful basketball player has a height of 6 feet 11 ​inches, or 211 cm. Based on statistics…

A:

Q: A successful basketball player has a height of 6 feet 3 ​inches, or 191 cm. Based on statistics from…

A: Given,a basketball player has a height of 6 feet 3 inchesand the Z-score =2.31

Q: A successful basketball player has a height of 6 feet 4 ​inches, or 193 cm. Based on statistics from…

A: