deviation from mean absolute deviation |deviation| data values mean (data value - mean) 72 75 81 76 76 77 79 78 MAD: 2. For another data set, all of the values are either 3 beats per minute above the mean or 3 beats per minute below the mean. Is that enough information to find the MAD for this data set? If so, find the MAD. If not, what other information is needed? Explain your reasoning.

True/False Write T or F in the blank to indicate whether the statement is true or false. A statistic is a piece of data that describes an entire population. When constructing a histogram, the bars should touch each other. The standard deviation is equal to the largest data point minus the smallest data point. The Greek letter µ represents the mean value of the data for a population. If the data is skewed, the best measure of average is the median as opposed to the mean. Qualitative data cannot be displayed via a pie chart. The median is the point at which 50% of the data are smaller and 50% of the data are larger. When r = -1, that means there is no corelation between the two variables. The number of points scored in a baseball game is a discrete piece of data. If variable y always increases whenever variable x increases, the only possibility is that x causes y.

What is the median of this set of data

Using the stemplot of annual precipitation (inches) below, determine the range, IQR, variance and standard deviation. Please answer correctly.

Find the area of the shaded region. The graph to the right depicts IQ scores of​ adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15.   Click to view page 1 of the table. LOADING... Click to view page 2 of the table. LOADING...                       85 110         A graph with a bell-shaped curve, divided into 3 regions by 2 lines from top to bottom, one on the left side and one on the right side. The region between the lines is shaded. Moving from left to right, the x-axis below the first line is labeled 85. The x-axis below the second line is labeled 110.       Question content area bottom Part 1 The area of the shaded region is enter your response here. ​(Round to four decimal places as​ needed.)

ZOOM + 2. Researchers studying acid rain recorded the pH level for a sample of 26 water sources in Pennsylvania. The sorted list of the data (some values have been obscured), the histogram of the data, and some other statistics are below. Histogram of pH levels Sort (pH) Frequency 10 10- 4.12 4.12 ?? ?? 4.29 ?? 4.31 4.39 4.39 4.40 4.41 4.45 4.52 4.56 4.57 4.60 ?? ?? 4.73 ?? 5.08 5.29 5.51 5.62 5.67 5.78 Summary statistics: Col n Min Max Q1 pH Q3 26 4.12 5.78 4.31 4.82 a) Find the median pH level. Carefully show your work. b) Considering your answer to part a) and the histogram, which would be the best choice for the sample mean pH level (4.68, 4.56, or 4.00 units)? Explain. c) Find the Range of the pH levels. d) Find the IQR of the pH levels 1 pH 3. The following numbers are a sample of ten of my golf scores from 2020. In golf the “units" are technically called "strokes". Find my mean score and the standard deviation of my scores. 98, 94, 88, 90, 86, 92, 86, 85, 84, 87

The box plots below represent the math test scores of Amy and Ed for the spring semester Amy Ed • 68 70 72 74 76 78 80 82 84 86 88 90 92 Which student has the greater median test score? Which student has the greater interquartile range of test scores? Which student has the greater range of test scores? Page 9:26 AM 4/26/2021 TIME OUT

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Data Set: 3,7, 11, 13, 16 The mean of this data set is The summation of the squares of the difference from the mean is 104. The standard deviation is the square root of the summation divided by the sample size. The Standard Deviation is rounded to 2 decimal positions.

Solve and show work.