Asociologist plans to conduct a survey to estimate the percentage of adults who believe in astrology. how many people must be surveyed if we want a confidence level of 99% and a margin of error of four percentage points? a) if we assume nothing is known about the percentage to be estimated, we need to survey 1037 adults. b) if we use the information from a previous survey in which 26% of respondents said that they believed in astrology, then we would need to survey 1079 adults.

Now 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.

Which is the focus of a parabola with equation y2=4x

The equation represents the function f, and the graph represents the function g. f(x)=3(5/2)^x determine the relationship between the growth factors of f and g. a. the growth factor of g is twice the growth factor of f. b. the growth factor of f is twice the growth factor of g. c. the growth factor of f is 2.5 times the growth factor of g. d. the growth factor of f is the same as the growth factor of g.