We are setting up virtual shopping tasks on an online survey. in each shopping task, we can only show up to 20 products on the screen. there are 80 products in total that we want to test. how many shopping tasks do we need to show so that on average, each product is shown 3 times throughout all the shopping tasks? assume all products are selected randomly and have an equal chance of being selected.

Jack lives on a farm and has a large backyard. the area of his rectangular backyard is of a square mile. if the width of the yard is of a mile, what fraction of a mile is the length of the rectangular backyard?

Needmax 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 point has an coordinates of (2,0) ? a