An earthquake registered 7.4 on the richter scale. if the reference intensity of this quake was 2.0 × 1011, what was its intensity?

The intensity was

Step-by-step explanation:

We are given

An earthquake registered 7.4 on the Richter scale

so, RC=7.4

the reference intensity of this quake was 2.0 × 10^11

so,

now, we can use formula

now, we can plug values

now, we can solve for I

c) the median for town a 30" is greater than the median for town b 25"

step-by-step explanation:

town a, median = q2 = 30

town b, median - q2 = 25

so the median for town a 30" is greater than the median for town b 25"