A fair 10-sided die is rolled 2 times. What is the probability of rolling a 2 at least once? Round your answer to 2 decimal places as necessary.
Hint: Think about the complement.

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Polynomial that can be factored as (3x-4)(3x+4)

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document