10 orange sodas, 15 cream sodas and 7 cherry sodas are in an ice chest. How many sodas must be removed from the chest to guarantee that on type of soda has been chosen? PLEASE, GIVE A STEP BY STEP EXPLANATION
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In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.