You Are Determining the Number of Colony Forming Units (CFUs)

question 40

Multiple Choice

You are determining the number of colony forming units (CFUs) for Susan, who has a urinary tract infection (UTI) . You added 1 mL of Susan's urine sample to 99 mL of diluent, and spread 0.1 mL of that dilution on a culture medium. After appropriate incubation, you count 143 colonies on the plate. What was the concentration of bacteria in the original urine sample? 

• A) 1.43 cells/ mL
• B) 1.43 × 10² cells/ mL
• C) 1.43 × 10³ cells/ mL
• D) 1.43 × 10⁵ cells/ mL
• E) Cannot be determined

Recognize the importance of expert and referent power in effective leadership.

Analyze the impact of solving important problems and innovation on power and leadership effectiveness.

Understand the methods and tactics used for influencing attitudes and behavior within organizations.

Differentiate between appropriate and inappropriate uses of power and influence tactics in work settings.

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Definitions:

Distribution Shape

Refers to the geometric arrangement of data points in a distribution, common shapes include normal, skewed, or bimodal distributions.

Mean Number

The arithmetic average of a set of values, calculated by dividing the sum of all values by the number of values.

Median Salary

The middle value of salaries when they are arranged in ascending or descending order, effectively dividing the data set into two equal halves.

Mean

The arithmetic average of a set of numbers, calculated by summing all the numbers and dividing by the count of those numbers.