6friends go out for dinner and order from a menu of 8 different sandwiches. what is the probability that at least 2 of the group order the same sandwich

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Write the expression as a single natural logarithm. 2 in a - 4 in y