Which of the following is false? the number of hours a person studies and the numerical score on the exam is a positive correlation the speed of a vehicle and the time it takes the vehicle to travel 60 miles is a positive correlation none, since all of the other answer choices are true a child’s age and the height of a child is a positive correlation

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?