The larger the standard deviation, the more dispersed the set of data is.     True or False

Q: The lowest and the highest data value of a data set are 12 and 28 respectively, then the approximate…

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Q: The descriptive measure of dispersion that is based on the concept of a deviation about the mean is…

A: Range : Range is the measure of dispersion. It is the difference between minimum value and maximum…

Q: The population standard deviation and sample standard deviation are of the same value if the…

A: Solution A population and sample standard deviation both have same unit as Population unit.

Q: Salespeople for a car sales company have an annual sales average of $225,000, with a standard…

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Q: If the variance of the data values in a population is 169, what is the standard deviation of the…

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Q: The price of stock A has a higher standard deviation than the price of stock B.  This tells that:…

A: We have given that the statement “The price of stock A has a higher standard deviation than the…

Q: A parent is hopeful that their son will score in the top 15% of a. dance competition. What score…

A: We have given that, The mean of the distribution is 28 and the standard deviation is 6.   Z-score =…

Q: If a set of data has a mean of 50 and a standard deviation of 4.5, what is the z-score for a value…

A: If a set of data has a mean of 50 and the standard deviation of 4.5. We have to find the z-score for…

Q: What would be the effect on the standard deviation of the set of scores 13, 14,15, 15, 16, and 17 if…

A: We have to find effect of membres on standard deviation.

Q: This kind of presentation allows large amount of data to be easily confined in a presentation.   a.)…

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Q: The mean of a distribution is 14 and the standard deviation is 5.

A: Given information: The mean of the distribution is 14 and the standard deviation is 5. Formula for…

Q: The population variance is the square of the sample standard deviation  True  False

A: From the provided information, The statement is that the population variance is the square of the…

Q: What is the mode of the data?  d. What is the standard deviation of the data?

A: Given Frequency table, Class Interval Frequency Relative Frequency 1 to 5 3 3 6 to 10 4 7…

Q: The population standard deviation and sample standard deviation are of the same value if the…

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Q: In the diagram below, what is the value of the standard deviation? What is the mean? 4.0 4.5 5.0 5.5…

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Q: (a) the range and (b) the standard deviation of the set of data.

A: NOTE: PLEASE ASK TWO DIFFERENT QUESTIONS INDIVIDUALLY. PLEASE ASK THE SECOND QUESTION AGAIN. WE CAN…

Q: For data that is normally distributed, is it possible for the standard deviation to be larger than…

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Q: In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores…

A: Given that,The middle 68% of the scores fall between 77 and 93.

Q: Lions gate produces and distributes about 30 movies per year. On average ,these movies rake in about…

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Q: A professor who teaches a large introductory statistics class (197 students) with eight discussion…

A: As due to the honor-code, we are authorized to answer only 3 subparts for each question and that…

Q: The average travel time to work for a person living in Kokoma, Indiana, is 17  minutes.  Suppose the…

A: Solution: Let X be the average travel time to work for a person living in Kokoma  Indiana has normal…

Q: What is the mean and standard deviation?

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Q: If the coefficient of variation for a data is given as 35%, and the standard deviation for the same…

A: given data coefficient of variation = 35% so cv = 0.35 sd = 32 mean  = ?

Q: In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores…

A: Given information middle 68% of the scores fall between 76 and 88 As per empirical Rule 68% falls…

Q: Lara wants to know if the number of words on a page in her English book is generally more than the…

A: Given information: The values of mean for the English and history books are 48.9 and 40.5,…

Q: Ashley and Delaney began arguing about who did better on their tests, but they couldn't decide who…

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Q: aking the Graduate Management Aptitude Test averaged 812 with a standard deviation of 145. Only…

A: Given: Meanμ=812Standard deviationσ=145 Consider, X be the random variable that shows the average…

Q: The population standard deviation and sample standard deviation are of the same value if the…

A: We want to tell you above statement is true or false

Q: A senior high student commutes daily from home to school. The average time for a one way trip is 20…

A: Given that, μ=20 minutesσ=4 minutes The no.of minutes is the starting point of the longest 10% of…

Q: What is the difference in meaning between the Standard Error of the Mean and and the Standard…

A: In statistics, a sample mean differs from the population's real mean; this difference is known as…

Q: Lucille, Rocio, and Cristina are all taking College Mathematics but from different professors. They…

A: Lucille's class had an average grade of 85 and the standard deviation was 3. Lucille earned 89.5 on…

Q: The average life of a car tire is 50,000 miles.  The standard deviation is 2,000 miles   What…

A: Normal distribution, also known as the Gaussian distribution, is a probability distribution that is…

Q: If a distribution has a mean of 35 and a standard deviation of 5, what value would be +1.5 standard…

A: Given that The value of mean of 35, Standard distribution of 5 and that correspond s to a z-score of…

Q: In a Science test, the mean is 46 and the standard deviation is 4. Assuming the scores are normally…

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Q: Which of the following is a measure of the center of the data? the range the standard deviation the…

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Q: Which of the following best describes how to measure the spread of the dala? The IQR is a better…

A: The IQR is the best measurement of spread for games and movies.

Q: In the table below, the distribution of the height of 100 students is given. According to this; a.…

A: The mean of a data which is classified into different intervals can be computed by μ=∑f·x∑f, where x…

Q: Find the range, the standard deviation, and the variance

A: Given: The sample space 50, 63, 56, 69, 96, 65, 83, 60, 98. To find: The range, the standard…

Q: Using your calculator, find the range and standard deviation, round to two decimals places: The…

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Q: A sample of data is given as below:3, 5, 7. What is the standard deviation

A: The formula for sample standard deviation is,

Q: Six different second-year medical students at Bellevue Hospital measured the blood pressure of the…

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Q: What is the statistical tool to be used if the standard deviation is known and the number of sample…

A: Introduction:  The Z-test is used to test whether the two population means are different or not when…

Q: If some data is symmetrical and unimodal, and the mean and standard deviation are 230 and 40…

A: If the data is symmetrical and unimodal, then it is normally distributed with mean, μ=230 and…

Q: How many of the sample of families would fall above 2 standard deviations from the mean? A. 0 B. 1…

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Q: The typical amount of sleep per night for college graduate students has a normal distribution with a…

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Q: In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores…

A: The random variable score X is normally distributed and middle 68% of values fall between 71 and 83…

Q: . Which group do you think has the larger standard deviation? OA. The Africa group should have the…

A: Given Information: No. of population=2 Name of the populations: 1. European Country.…

Q: In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores…

A: Given : The middle 68% of the scores fall between 71 and 79 P(71<X<79)=68%