1. What measures of center and spread are best used if the data is symmetrical and asymmetrical? Explain your reasoning.
2.
What are the different shapes of a data set? Explain left and right skew and how this affects the mean of a data set.
3.
What is the difference between correlation and causation? What makes causation difficult to prove?

What value is equivalent to 5 + [5 × (4 + 2)]? a) 35 b) 45 c) 60 d) 110

Samantha swam upstream for some distance in one hour. she then swam downstream the same river for the same distance in only 12 minutes. if the river flows at 4 mph, how fast can samantha swim in still water?

Select the correct answer from each drop-down menu. rewrite the formula to find voltage. the formula for electrical power (p, in watts) is where v is the voltage in volts and r is the resistance in ohms. for a particular brand of water heater, r is 32 ohms and p is 0.5 watts. the formula to find v is , and the voltage at which the heater operates is volts.