Since 1900, the magnitude of earthquakes that measure 0.1 or higher on the Richter Scale in CA are distributed normally with a mean of 6.2 and a standard deviation of 0.5, according to data obtained from the I. S. Geological survey. If 4 earthquakes are randomly selected since 1900,find the probability that their mean magnitude is above 6.4 . 1). What are the parameters
2).find the z score , constructthe standard normal distribution density curve then shade
Find the probability

its 4 because 2 times 2 is 4, if you double the number two you get four

3-4

step-by-step explanation:

the answer is 3-4 because both 45 and 60 has a multiple of 15.

45/3=15

60/4=15

therefore the odds against selecting a red is 4-3

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation:

show da graph

step-by-step explanation: