Rachael got a 670 on the analytical portion of the Graduate Record Exam (GRE). If GRE scores are normally distributed mean m = 600 and standard deviation s = 30, what is her standardized score? (use comma please)

Q: On a nationwide math test, the mean was 75 and the standard deviation was 10. If Roberto scored 85,…

A: The formula of Z-score is,

Q: On a nationwide math test, the mean was 75 and the standard deviation was 7. If Roberto scored 70,…

A: The z score indicates how many standard deviations that a data points away from the mean. It can be…

Q: What is the corresponding Z- score, mean is 110, standard deviation is 8 and x is 90

A: In question, We'll find the Z - score for mean 110, standard deviation 8 and x = 90. The solution is…

Q: On a nationwide math test, the mean was 51 and the standard deviation was 4. If Roberto scored 70,…

A:

Q: On a nationwide math test, the mean was 60 and the standard deviation was 7. If Roberto scored 90,…

A:

Q: The reading speed of sixth-grade students is approximately normal, with a mean speed of 125 words…

A: Mean = 125 Standard deviation = 24

Q: I need help finding the g average and standard deviation. Then answering number 1 - is the accepted…

A: Given Information: Consider the given fitted data: Trial A gexp=|2A| 1a -7.03E+00 14.07 1b…

Q: The average high temperature for Atlanta in January is 53 degrees with a standard deviation of 8.2…

A: INTRODUCTION :  To measure the variability of which series is consistent than any other then the…

Q: John receives a 65% on his math test assume that the average grade on the test for his class is 44%…

A: The standard normal variable Z is defined as, Z = (X – µ)/σ, where µ is the mean of the random…

Q: In another company, every worker received a 5% raise. How does this affect the mean salary? The…

A: Every worker received a 5%. The mean defines that the center or average of the data and it is…

Q: On a nationwide math test, the mean was 57 and the standard deviation was 10. If Roberto scored 80,…

A:

Q: The mean grade on a science test was 79 and there was a standard deviation of 6. If your sister…

A: The z score explains the deviations of the observations from the mean. It is calculated using the…

Q: can you find the mean and standard deviation?

A: Let the male data set is denoted by x, then the mean is given by the formula x¯=∑xxn. Where, the…

Q: On a nationwide math test, the mean was 63 and the standard deviation was 10. If Roberto scored 85,…

A: GivenMean(μ)=63standard deviation(σ)=10score(x)=85

Q: On a nationwide math test, the mean was 69 and the standard deviation was 7. If Roberto scored 80,…

A: Given,mean (μ)=69standard deviation (σ)=7andRoberto score(X)=80

Q: Laura learned that the average GPA in her school is 3.6 with a standard deviation of 0.3. If her GPA…

A: From the given information,   Mean = 3.6 Standard deviation = 0.3   The objective is to find the…

Q: What is the sum of the deviation scores for the data in the frequency distribution table below?

A: Sum of deviation  of scores from mean is always zero.

Q: The Wechsler Intelligence Scale for Children is used, in several languages, in the United States and…

A:

Q: You want to know the percentage of utility companies that earned revenue less than 39 million or…

A: Given data You want to know the percentage of utility companies that earned revenue less than…

Q: On a nationwide math test, the mean was 52 and the standard deviation was 4. If Roberto scored 85,…

A: The z score formula is,

Q: most graduate schools of business require applicants for admission to take an examination. scores on…

A: Given, μ=527σ=112 Let x be score that an individual must score to be in the highest 5%. Therefore,…

Q: Students at Roseville High School took an IQ test with a mean of 100 and a standard deviation of 15.…

A: GivenMean(μ)=100standard deviation(σ)=15

Q: Sarah's score on the second exam was 34 for which the mean of all scores was 28 and the standard…

A:

Q: Reginald Brown, an inspector from the Department of Weights and Measures, weighed 15 eighteen-ounce…

A: Let μ denotes the population mean. The sample size is 15, population mean is 18 ounce, sample mean…

Q: The mean grade of Adrian in the standard deviation was 7. In Science, his mean grade was 89 and the…

A:

Q: The mean score on the Stats exam was 75 points with a standard deviation of 5 points, and Gregor's z…

A: The mean is 75 and the standard deviation is 5.

Q: Looking at the test data, Jason saw that his score was a 2.5 with a mean of 79 and a standard…

A: We will find the actual score as following.

Q: Suppose you scored 83, 77, 72, and 82 O on your four exams in a mathematics course. Calculate the…

A: The given scores are 83, 77, 72, and 82.We need to find the range and standard deviation of the…

Q: On a nationwide math test, the mean was 57 and the standard deviation was 4. If Roberto scored 90,…

A: Formula for z-score is

Q: In Statsville, there is a city-wide speed limit of 30 mph. If you are caught speeding, the fine is…

A: Let X be the random variable of drivers who were fined Given Data: E(X)=42 SD(X)=7   Let Y be the…

Q: Many students did an exam, the mean was 15 and the standard deviation was 32 The highest mark was…

A: Given Mean μ=15, standard deviation σ=32  X=103

Q: a nationwide math test, the mean was 60 and the standard deviation was 7. If Roberto scored 85, what…

A: Given data,Mean μ=60sd    σ=7 If Roberto scored 85z-score=?

Q: A school district requires all graduating seniors to take a mathematics test. This year, the test…

A:

Q: What percentage of the widget Weights lie between 55 and 79 ounces when the mean is 61 and the…

A: We have to  given probability...

Q: The mean grade in the Physics examination was 73 and the standard deviation was 8. Determine the…

A:

Q: The mean grade of in the final examination in Mathematics was 85 and the standard deviation was 7.…

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

Q: If the mean snowfall for Ottawa Ontario Canada is 98 inches per year and the standard deviation is…

A: Given,mean(μ)=98standard deviation(σ)=25

Q: You want to know the percentage of utility companies that earned revenue greater than 94 million…

A: Given Mean(μ)=60standard deviation(σ)=15

Q: Justin got a score of 85 on an GE MMW examination for which the mean is 75. Justin realized that the…

A: Given, Justin got a score of 85 on an GE MMW examination for which the mean is 75. Justin realized…

Q: Rachael got a 660 on the analytical portion of the Graduate Record Exam (GRE). If GRE scores are…

A:

Q: The Variance for a set of scores is 36, what is the standard deviation, what is the range?

A: Given, variance = 36Therefore,  Standard deviation = square root of variance…

Q: After calculating the mean and standard deviation, how do we interpret the result, and when a…

A: The mean is a measure of central tendency and the standard deviation is a measure of dispersion in…

Q: The daily water usage per person in Davao City is normally distributed with a mean of 20 gallons and…

A: Empirical Rule : The empirical rule, also referred to as the three-sigma rule or 68-95-99.7 rule, is…

Q: Alicia scored a 70 on her psychology quiz, but the class as a whole averaged a 40. If the standard…

A: From the provided information, Population mean (µ) = 40 Standard deviation (σ) = 10 Let X be a…

Q: The average on the Math section of the SAT was 500 with a standard deviation of 100. What score must…

A:

Q: According to the Department of Education the mean number of hours college students spend studying…

A:

Q: Jerome made a grade of 89.7 on his test. The mean of the test scores was 71.4 with a standard…

A: Consider X be a random variable which follows normal distribution indicates the test scores. The…

Q: The mean of 7 consecutive integers is 10. What is the standard deviation?

A:

Q: IF your mean is 832 and your standard deviation is 86, what values like in the 36% range?? How do…

A: Given Data: Mean=832 SD=86

Q: You want to know the percentage of utility companies that earned revenue less than 67 million…

A: