Online Access Free CBDA Practice Test

From a prior analytics study, a telecommunications company has concluded that due to the maturity of the market the cost of obtaining new customers is on the rise. As a result, the company wants to increase their efforts on retaining customers. One of the key performance indicators that will help them track their progress in this area is the rate at which customers leave/unsubscribe from their services over a given time period.Which performance indicator is this referring to?

• A.Acquisition rate
• B.Churn rate
• C.Subscription rate
• D.Retention rate

A data scientist is performing statistical analysis and is interested in graphically depicting the data set according to the associated quartiles Minimum, First Quartile, Median, Second Quartile, Third Quartile.
Which technique would allow for the display of this statistical five number summary?

• A.Box plot
• B.Gaussian distribution
• C.Multivariate histogram
• D.Scatter plot

A food and beverage company would like to administer a survey to obtain customer insights about a new cookie product recently launched. A data team is asked to build the survey paying careful attention to reduce the degree of sampling error.Which criteria would help the team meet this objective?

• A.Large sample size and variation in the target population
• B.Small sample size and using customers who agreed to take the survey
• C.Small sample size and specific subset of the target population
• D.Large sample size and random selection of the target population

To gain traction on online sales, a retailer initiated a marketing campaign using banner ads. The company has requested their analytics team to evaluate the performance of the campaign. During the presentation, the analyst confirmed that the campaign did bring in a large number of net new customers to the website and met the target sales conversion rate. They also noted that there was a high number of repeat visitors not completing a sale. What decision would help the retailer improve sales conversion rates for repeat visitors?

• A.Incentivize customers to subscribe to promotional notifications
• B.Ensure the sales checkout process is streamlined
• C.Increase investment in banner ads
• D.Add additional new products to attract customers

A large bank has recently revamped their website, adding additional features such as financial investment opportunities, spending activity, and supporting reports. Which question will add value when evaluating how the website is being used?

• A.What are the top keywords used in searches made within the website?
• B.What is the customer retention rate since the website launch?
• C.What is the customer satisfaction rating across the branches?
• D.How many articles were published since the website launch?