the brain volumes (cm3) of 50 brains vary from a low of 918 cm to a high of 1498 cm3. Use the range rule of thumb to estimate the standard deviation s and compare the results to the exact standard deviation of 174.9 cm3, assuming the estimate is accurate if it is within 15 cm3

Lindsay used two points, (x, y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

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Will make ! for correct answer the dot plot below shows the number of toys 21 shops sold in an hour. is the median or the mean a better center for this data and why? a. median; because the data is not symmetric and there are outliersb. median; because the data is symmetric and there are no outliersc. mean; because the data is symmetric and there are no outliersd. mean; because the data is skewed and there are outliers