Aperson bets you that in 100 tosses of a fair coin the number of heads will differ from 50 by 4 or more. what is the probability that you will win this bet?
the book says the answer is p=.516 but i disagree with this answer so i am looking for a second opinion

True or false? many triangular shapes can be circumscribed about a given circle

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.

Luisa sells stuffed animals. she sells her stuffed elephant for $34.90, and the sales tax is 6% of the sale price. about how much is the sales tax on the elephant?