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Let’s say we have a table with an <code>id</code> and <code>name</code> fields. The table holds over 100 million rows and we want to sample a random row in the table without throttling the database.

Write a query to randomly sample a row from this table.

Input:

<code>big_table</code> table

<table>
<thead>
<tr>
<th>Columns</th>
<th>Type</th>
</tr>
</thead>

<tbody>
<tr>
<td><code>id</code></td>
<td>INTEGER</td>
</tr>

<tr>
<td><code>name</code></td>
<td>VARCHAR</td>
</tr>
</tbody>
</table>

Write a query to randomly sample a row from a big table.

Random SQL Sample

Let’s say that your company is running a standard control and variant AB test on a feature to increase conversion rates on the landing page. The PM checks the results and finds a .04 p-value.

How would you assess the validity of the result?

Experiment Validity

Let’s say you work for a social media company that has just done a launch in a new city. Looking at weekly metrics, you see a slow decrease in the average number of comments per user from January to March in this city.

The company has been consistently growing new users in the city from January to March.

What are some reasons why the average number of comments per user would be decreasing and what metrics would you look into?

What metric could be used to measure if active users are still engaging on the platform despite an overall decrease in the average number of comments per user?

What metric could be used to measure if active users are still engaging on the platform despite an overall decrease in the average number of comments per user?

Decreasing Comments

How would you investigate a decline in the average number of comments per user?

Visiting Nurse Service Of New York Salaries by Position

Overview Manages Products throughout their Product Lifecycle, building out a Product Portfolio as their space matures. Leads innovation within the Technical Product domain within the scope of their line of business – leads pilot projects and experiments for new products and identifying high impact areas with potential for disruption, while extending the Product Lifecycle for existing products through enhancements that deliver continued value for End Users. Strong advocate for Agile Product Development – participating in and supporting Agile Ceremonies where appropriate. Lead cultural transformation as an evangelist of Product Management best-practices, and as a well-positioned leader connecting cross-functional teams and facilitating collaboration. Compensation: $109,900.00 - $146,500.00 Annual Responsibilities: <ol><li>Builds deep understanding of problem statements, pain points, challenges, opportunities, goals, and objectives of the business, considering them as Internal Customers.</li><li>Defines Persona Profiles for Buyers and End Users.</li><li>Builds Product Backlogs for the associated Product Development Teams, defining Features, User Stories, Acceptance Criteria that translate the business requirements into technical requirements for development teams.</li><li>Collaborates closely with Scrum Masters, Product Development Teams and Application Owners to ensure efficient and high-quality execution of Product Development.</li><li>Defines Testing Plans for enhancements and releases, including UAT and working with QA to minimize defects and production support.</li><li>Manages the Release Planning – End User Training, Demonstrations and Outage and Go-Live Communications.</li><li>Leads Outcome Tracking – informs product decisions throughout the lifecycle based on value creation and realization.</li><li>Tracks Product Outcomes – ensures a high quality product is developed and is adopted and utilized effectively.</li><li>Identifies, benchmarks and tracks Operational Outcomes – collaborates with Buyer and End User on the operational outcomes that are critical to success, and tracks KPIs throughout a Product Lifecycle.</li><li>Ensures Value Realization – Assumes Product and Operational Outcomes are being met, ensures the connected business outcomes are being realized.</li><li>Proactively works with internal customers to ensure that emerging needs are met, and value is being continuously delivered.</li><li>Manages risk, and ensures alignment and adherence to corporate, financial and IT standards (e.g., architecture, compliance, security).</li><li>Participates in special projects and performs other duties as assigned.</li></ol> Qualifications Licenses and Certifications: Scrum Certified Product Owner certification preferred. Education: Bachelor's Degree in Computer Science or related discipline, or the equivalent combination of education and work experience, required. Work Experience: Minimum 5 years of product and/or project management and systems integration experience required. Ability to surface, prioritize, and balance multiple stakeholder priorities required. Prior experience with Agile SLDC methodology preferred. Proven track record in managing multiple Science & Technology projects that impact core business operations preferred. Ability to multitask and manage multiple projects in a cross-functional environment required. Strong communication, interpersonal, organizational and team building skills, business judgment and proven expertise in directing the efforts of technical staff which may or may not report directly to position required. Proficiency using software to manage project and project workflows required. Experience using SQL (mandatory), Python, R or other data analysis tools preferred. Health care industry experience preferred.
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Visiting Nurse Service Of New York Interview Questions

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Visiting Nurse Service Of New York Interview Questions

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