What is the bi-conditional statement of the conditional statement below? What is the truth value? If you live in Dallas, then you live in Texas.

You live in Dallas if and only if you live in Texas.
Truth Value: False

If you do not live in Dallas, then you do not live in Texas.
Truth Value: False

If you do not live in Texas, then you do not live in Dallas.
Truth Value: True

If you live in Texas, then you live in Dallas.
Truth Value: True

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

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.