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Question 16Not yet answeredMarked out of 1.00Flag questionTipsQuestion text"A class of 50 students scored an average of a 73 on the final exam. Given the standard deviation is 5, what is the value of t for a student who scored a 67?"Question 16Answera.-8.49b.-16.97c.-17.5d.-7.07Clear my choiceQuestion 17Not yet answeredMarked out of 1.00Flag questionTipsQuestion textTI=83 graphing calculators are more useful in which of the following subject functions?Question 17Answera.Statistics, trigonometry, and algebrab.Only statistics and algebrac.Only statisticsd.Only statistics and trigonometryClear my choiceQuestion 18Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhat is an outlier?Question 18Answera.an observation that may indicate that the distribution is skewed and that one should be very cautious in using tools or intuitions that assume a normal distributionb.an observation that is numerically distant from the rest of the datac.an observation that is often indicative either of measurement error or of the population having a heavy-tailed distributiond.all of these answersClear my choiceQuestion 19Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhen is the root-mean-square especially useful?Question 19Answera.when a data set includes both positive and negative numbersb.when a data set includes both discrete and continuous valuesc.when a data set includes exclusively positive numbersd.when a data set includes exclusively negative numbersClear my choiceQuestion 20Not yet answeredMarked out of 1.00Flag questionTipsQuestion textLooking at a scatter plot and seeing how close the points are to a line helps to determine what about the statistical relationship?Question 20Answera.verticalityb.strengthc.horizontalityd.direction

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Question 16Not yet answeredMarked out of 1.00Flag questionTipsQuestion text"A class of 50 students scored an average of a 73 on the final exam. Given the standard deviation is 5, what is the value of t for a student who scored a 67?"Question 16Answera.-8.49b.-16.97c.-17.5d.-7.07Clear my choiceQuestion 17Not yet answeredMarked out of 1.00Flag questionTipsQuestion textTI=83 graphing calculators are more useful in which of the following subject functions?Question 17Answera.Statistics, trigonometry, and algebrab.Only statistics and algebrac.Only statisticsd.Only statistics and trigonometryClear my choiceQuestion 18Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhat is an outlier?Question 18Answera.an observation that may indicate that the distribution is skewed and that one should be very cautious in using tools or intuitions that assume a normal distributionb.an observation that is numerically distant from the rest of the datac.an observation that is often indicative either of measurement error or of the population having a heavy-tailed distributiond.all of these answersClear my choiceQuestion 19Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhen is the root-mean-square especially useful?Question 19Answera.when a data set includes both positive and negative numbersb.when a data set includes both discrete and continuous valuesc.when a data set includes exclusively positive numbersd.when a data set includes exclusively negative numbersClear my choiceQuestion 20Not yet answeredMarked out of 1.00Flag questionTipsQuestion textLooking at a scatter plot and seeing how close the points are to a line helps to determine what about the statistical relationship?Question 20Answera.verticalityb.strengthc.horizontalityd.direction

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Solution

Question 16: To find the value of t, we need to use the formula for a z-score (or t-score in this case), which is (X - μ) / σ. Here, X is the individual score, μ is the mean, and σ is the standard deviation.

X = 67 (the student's score) μ = 73 (the class average) σ = 5 (the standard deviation)

So, t = (67 - 73) / 5 = -6 / 5 = -1.2. This isn't an option in your multiple choice answers, so there may be a mistake in the question or the provided answers.

Question 17: TI=83 graphing calculators are useful in a variety of mathematical subjects, including statistics, trigonometry, and algebra. So, the answer is a. Statistics, trigonometry, and algebra.

Question 18: An outlier is an observation that is numerically distant from the rest of the data. It can indicate that the distribution is skewed, and it may be indicative of measurement error or of the population having a heavy-tailed distribution. So, the answer is d. All of these answers.

Question 19: The root-mean-square is especially useful when a data set includes both positive and negative numbers. It is a measure of the magnitude of a set of numbers, regardless of their sign. So, the answer is a. When a data set includes both positive and negative numbers.

Question 20: Looking at a scatter plot and seeing how close the points are to a line helps to determine the strength of the statistical relationship. The closer the points are to the line, the stronger the relationship. So, the answer is b. Strength.

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