Tickets for a dance were $10.00 for single tickets and $16.00 for a pair of tickets. There were 271 people who attended the dance. Ticket sales totaled $2. 278.00. How many single tickets and how many pairs of tickets were sold?
O 199 single tickets and 72 pairs of tickets
108 single tickets and 55 pairs of tickets
55 single tickets and 108 pairs of tickets
72 single tickets and 199 pairs of tickets

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b

In 2000, for a certain region, 27.1% of incoming college freshman characterized their political views as liberal, 23.1% as moderate, and 49.8% as conservative. for this year, a random sample of 400 incoming college freshman yielded the frequency distribution for political views shown below. a. determine the mode of the data. b. decide whether it would be appropriate to use either the mean or the median as a measure of center. explain your answer. political view frequency liberal 118 moderate 98 conservative 184 a. choose the correct answer below. select all that apply. a. the mode is moderate. b. the mode is liberal. c. the mode is conservative. d. there is no mode.