A math teacher needs to choose 6 students from class of 30 to go to the library. How many different groups can she select?

Possible answers
A 180
B 427,518,000
C 593,775
D none of the choices are correct

Write a corresponding real world problem to represent 2x - 125=400

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.