Gordon is a goalkeeper. The Probability that he saves a penalty is 0.3. What is the probability that Gordon does not save a penalty?

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25

Describe a situation where it would be beneficial to round decimals to the nearest dollar. explain why you would use rounding in that situation.