Credit-card debt a school administrator is concerned about the amount of credit-card debt that college students have. she wishes to conduct a poll to estimate the percentage of full-time college students who have credit-card debt of $2000 or more. what size sample should be obtained if she wishes the estimate to be within 2.5 percentage points with 94% confidence if
(a) a pilot study indicates that the percentage is 34%?
(b) no prior estimates are used?

Name the quadrilaterals that have four equal sides.

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.

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10