A population has a mean of 157 with a standard deviation of 25. A sample of 50 items from that population has a mean of 165 with a standard deviation of 24. Which of these describes the point estimate?

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

The monetary value earned for selling goods or services to customers is called a.) revenue b.) assets c.) money d.) accounting

Cor d? ? me ? 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.