Agroup of 169 students to be seated in a square formation for a yearbook photo. solve the equation 169=s^2 to find how many students should be in each row.

The probability of drawing a heart from a standard deck of cards is .25. you record the card you draw and return the card before shuffling to ensure a binomial distribution. if you do this 20 times what is the probability that you will draw a heart 7 times? a. 0.888 b. 0.001 c. 0.112 d. 0.473