Acompany with loud machinery needs to cut its sound intensity to 44% of its original level. by how many decibels would the loudness be reduced? use the formula l=10log i/i(o). round to the nearest hundredth.
a) 3.57 decibels
b) 1.58 decibels
c) 2.52 decibels
d) 1.93 decibels

Asix-sided die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. in the next three rounds (the die is rolled 20 times in each round), the number 3 comes up 6 times, 5 times, and 7 times. the experimental probability of rolling a 3 is 10 %, which is approximately % more than its theoretical probability. (round off your answers to the nearest integer.)