Questions: Calculate the annual running average for the following TTHM (Total Trihalomethane) quarterly results for the 2nd quarter of year three. Use the data given below: Quarter # 1 2 3 4 THM ug/L 70 80 110 50 Year 2 80 60 50 70 Year 3 60 60 80 50

Calculate the annual running average for the following TTHM (Total Trihalomethane) quarterly results for the 2nd quarter of year three. Use the data given below: Quarter # 1 2 3 4 THM ug/L 70 80 110 50 Year 2 80 60 50 70 Year 3 60 60 80 50
Transcript text: Calculate the annual running average for the following TTHM (Total Trihalomethane) quarterly results for the 2nd quarter of year three. Use the data given below: \begin{tabular}{lllll} Quarter \# & 1 & 2 & 3 & 4 \\ THM ug/L & 70 & 80 & 110 & 50 \\ Year 2 & 80 & 60 & 50 & 70 \\ Year 3 & 60 & 60 & 80 & 50 \end{tabular}
failed

Solution

failed
failed

Solution Steps

Step 1: Understanding the Problem

We need to calculate the annual running average of Total Trihalomethane (TTHM) concentrations for the 2nd quarter of Year 3 using the quarterly data provided. The running average for a given quarter is typically calculated using the data from the four most recent quarters, including the current quarter.

Step 2: Identify the Relevant Data

For the 2nd quarter of Year 3, the relevant quarters to consider for the running average are:

  • 3rd quarter of Year 2: 50 µg/L
  • 4th quarter of Year 2: 70 µg/L
  • 1st quarter of Year 3: 60 µg/L
  • 2nd quarter of Year 3: 60 µg/L
Step 3: Calculate the Running Average

The running average is calculated by taking the sum of the TTHM concentrations for these four quarters and dividing by 4.

\[ \text{Running Average} = \frac{50 + 70 + 60 + 60}{4} = \frac{240}{4} = 60 \, \text{µg/L} \]

Final Answer

The annual running average for the 2nd quarter of Year 3 is \(\boxed{60 \, \text{µg/L}}\).

Was this solution helpful?
failed
Unhelpful
failed
Helpful

Questions asked by other users

failedAnswered
Question 46 ( 0.5 points) One of the functional groups from vinyl acetate was lost in order to make the links between the vinyl acetate molecules resulting in the polymer polyvinyl acetate. Name the lost functional group. Your options are: alcohol, aldehyde, alkene, alkyne, amine, amide, aromatic, cyclo-, ester, ether, halo-, imine, ketone, and thiol.
failedAnswered
achieve.macmillanlearning.com 06: 3.24, Composition Rhetoric ls LearningCurve: Active Reading e: 170 / 450 Question Value The following sentence is the first sentence in a paragraph. Based on this sentence, what is the MOST likely topic of the rest of the paragraph? Some analysts expect the Federal Reserve, under the direction of Chair Linda Martinez, to continue on its present course over the next two to three years, while others predict a radical reshaping of fiscal policy. the history of the Federal Reserve an explanation of the two possible courses of action that the Federal Reserve might take the previous chair of the Federal Reserve corruption on Wall Street Veed help on this question? Read the ebook page on this topic Get a hint (no penalty) (fewer points) Show answer (no points) MacBook Air
failedAnswered
Question 18 During the process of fermentation: Yeast converts the water in grape juice into alcohol Yeast converts the excess alcohol in wine into sugar and acids Yeast converts the acid in grape juice into alcohol Yeast converts the sugar in grape juice into alcohol
failedAnswered
The new grad nurse on orientation admits a 79-year-old man to the hospital with shortness of breath. The preceptor performs a brief bedside assessment after the new grad. Which assessments should the preceptor perform? Select all that apply. - Observing general appearance - Observing environment - Auscultation of bowel sounds - Auscultation of the heart sounds - Auscultation of the breath sounds - Asking the client about last bowel movement - Reviewing the vital signs - Observing the client's gait when ambulating - Observing the breathing pattern
failedAnswered
Marlena tells her therapist that she often feels helpless and unable to accomplish her goals. Her therapist responds by acknowledging her feelings, restating what she has told him, and clarifying the feelings behind what Marlena is expressing. What aspect of client-centered therapy is this? indirect empathy personal growth unconditional positive regard active listening