lots of matthew determined the average number of green candies in a sample set of 10 bags of candies. the results of the last 5 samples of 10 bags are shown. what does the variance tell you about making predictions from one of the samples? graph included

Which shows the correct substitution of the values a, b and c from the equation 1=-2x+3x^2+1

Max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Solve for x where 0 equation: cot^2x+2cotx+1=0