Related Questions

Certain number of children were playing a game of football. There was a trial taking place on the field. In this trial the probability that a goal is scored is 2/5. The probability that a girl hits a goal is 7/10 whereas the probability that a boy hits a goal is 1/5. What will be the probability that not only a goal is hit but it is also hit by a boy?
A 14/50
B 7/50
C 2/5
D 2/25
Certain numbers of children were playing a game of football. There was a trial taking place on the field. In this trial the probability that a goal is scored is 2/5. The probability that a gril hits a goal is 7/10 whereas the probability than a boy hits a goal is 1/5. What will be the probability that not only a goal is hit but it is also hit by a boy?
A 14/50
B 7/50
C 2/5
D 2/25
Coal mines drainage waste water (acidic in nature) results from the earth's water percolating through the voids created in coal bed during mining. This polluted water which either drains out naturally to water courses or are removed before starting the mining is
A Neutralised by alkali treatment
B Left as such without any treatment
C Diluted with fresh water to reduce its acidity
D None of these
Himel has a goal to bench press 220 pounds. When he started working out. Himel was able to lift 150 pounds. He has currently increased that amount by 20%. What percent of his current lifting amount must Himel increase to reach his goal of 220 pounds?
A 22.50%
B 22%
C 22.22%
D 20.22%
The goal to ensure the accuracy , integrity and safety of all information system processes and resources is goal of :
A Security management
B Firewalls
C Encryptions
D Cyber theft
Data mining applications are used accomplish which of the following tasks?
A Process transactions only
B Do RFM analysis only
C Do what-if analysis only
D Do both RFM and what-if analysis
Which of the following is an unsupervised data mining technique?
A Cluster analysis only
B Regression Analysis only
C RFM Analysis only
D Both Regression Analysis and RFM Analysis
Data Mining uses simple arithmetic techniques such as sums, averages, and groupings to perform what-if analyses, to make predictions, and to facilitate decision making.
A True
B False
During logical database design, the conceptual data model is transformed into a logical data model which describes the data in terms of a specific data management technology.
A True
B False
The goal of microdata is to create a unified way to define the data in a way any web crawler or reader implementation can read it.
A True
B False

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