Week 1 2 3 4 5 Water Level (inches) − 1 1 4 1 3 8 2 1 2 − 1 5 8 − 1 3 4 Between which two weeks did the water level change the most? Calculate the change

The water level change the most in week 3 and week 4

The change = -370 inches

Step-by-step explanation:

Given - Week                              1           2            3           4            5

             Water Level (inches) − 1 1 4     1 3 8      2 1 2      -1 5 8      -1 3 4

To find - Between which two weeks did the water level change the most? Calculate the change .

Proof -

The formula for change in water level with respect to week be-

Rate of Change in Water Level = Difference in water level / Difference in weeks

Now,

For week 1 and week 2

Rate of change in water level = = = 24 inches

Now,

For week 1 and week 3

Rate of change in water level = = = 49 inches

Now,

For week 1 and week 4

Rate of change in water level = = = -90.67 inches

Now,

For week 1 and week 5

Rate of change in water level = = = -62 inches

Now,

For week 2 and week 3

Rate of change in water level = = = 74 inches

Now,

For week 2 and week 4

Rate of change in water level = = = -148 inches

Now,

For week 2 and week 5

Rate of change in water level = = = -90.67 inches

Now,

For week 3 and week 4

Rate of change in water level = = = -370 inches

Now,

For week 3 and week 5

Rate of change in water level = = = 173 inches

Now,

For week 4 and week 5

Rate of change in water level = = = 24 inches

∴ we get

The water level change the most in week 3 and week 4

The change = -370 inches

Note :

The highest change means which temperature goes the most change in water level. It can be negative also.

So, We have to take the modulus and then find the highest number.

Here, 370 > 173

So, Highest change occurs in Week 3 and Week 4 but not in Week 3 and Week 5.

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

b). 4320 have a nice day