Write this number in expanded form 73,489

Somone me i want to know what 18 hours out of 24 hours in a fraction

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.

D. in a discrete probability distribution, the sum of the probabilities for the discrete variables will be > 1. true or false