Asurvey revealed that 31% of people are entertained by reading books, 39% are entertained by watching tv, and 30% are entertained by both books and tv. what is the probability that a person will be entertained by either books or tv

Measures of the angle of r, 31 s (x+4) t (3x+9)

Ineed with number 6 , explain how to get 1978

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.