The table shows information about the times, 1 seconds, taken by each of 100 students to solve a puzzle. Time (1 seconds)
0 < 10
103 15
15 * 15 20
20.1$ 40
40 < 75
Frequency
9
18
(a) Calculate an estimate of the mean time​

Two friends went to get ice cream sundaes. they each chose a flavor of ice cream from a list of vanilla and chocolate and toppings from a list of hot fudge, strawberries, sprinkles, peanuts, and whipped cream. use the sets below describing their choices and find c'. let a = {vanilla, chocolate, hot fudge, strawberries, sprinkles, peanuts, whipped cream} let b = {vanilla, hot fudge, sprinkles, whipped cream} let c = {chocolate, hot fudge, peanuts, whipped cream}