A recent study was conducted to investigate the duration of time required to complete a certain manual dexterity task. The reported mean
was 10.2 seconds with a standard deviation of 16.0 seconds. Suppose the
reported values are the true mean and standard deviation for the
population of subjects in the study. If a random sample of 144 subjects is k
selected from the population, what is the approximate probability that the
mean of the sample will be more than 11.0 seconds? *

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

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.

Abag contains pieces of paper numbered from 5 to 9. a piece of paper is drawn at random. what is the theoretical probability of drawing a number less than 8?