This set of MCQ(multiple choice questions) focuses on the Data Analytics with Python NPTEL Week 2 Assignment Solutions.
Course layout (Answers Link)
Week 1: Basics of Python Spyder
Week 2 : Introduction to probability
Week 3 : Sampling and sampling distributions
Week 4 : Hypothesis testing
Week 5 : Two sample testing and introduction to ANOVA
Week 6 : Two way ANOVA and linear regression
Week 7 : Linear regression and multiple regression
Week 8 : Concepts of MLE and Logistic regression
Week 9 : ROC and Regression Analysis Model Building
Week 10 : c2 Test and introduction to cluster analysis
Week 11 : Clustering analysis
Week 12 : Classification and Regression Trees (CART)
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Data Analytics with Python NPTEL Week 2 Assignment Solutions
Q1. Which of the following is not a method for describing a sample space?
a) roster or listing
b) tree diagram
c) Offset builder notation
d) Venn diagram
Answer: c) Offset builder notation
Q2. A club of 4 is to be selected from a group of 12 people. How many possible clubs can be selected?
a) 395
b) 425
c) 495
d) 525
Answer: c) 495
Q3. Eight individuals are candidates for positions of president, vice president, and treasurer of an organization. How many possibilities of selections exist?
a) 300
b) 330
c) 336
d) 339
Answer: c) 336
Q4. A college plans to interview 8 students for possible offers of graduate assistantships. The college has three assistantships available. How many groups of three can the college select?
a) 126
b) 56
c) 136
d) 130
Answer: b) 56
Q5. company plans to interview 10 recent graduates for possible employment. The company has three positions open. How many groups of three can the company select?
a) 90
b) 100
c) 120
d) 130
Answer: c) 120
Q6. Individual outcome of an experiment is called?
a) the sample space
b) a sample point
c) an experiment
d) an individual
Answer: b) a sample point
Q7. Two events having nonzero probabilities
a) can be both mutually exclusive and independent
b) cannot be both mutually exclusive and independent
c) are always mutually exclusive
d) are always independent
Answer: b) cannot be both mutually exclusive and independent
Q8. On an average 5 % items supplied by manufacturer X are defectives. If a batch of 10 items is inspected: what is the probability that 2 items are defective
a) 0.065
b) 0.075
c) 0.085
d) 0.095
Answer: b) 0.075
Q9. A question paper contains 90 multiple choice questions. There are 4 alternative answers (A, B, C or D) out of which only one is correct. Mr X answers these questions randomly (i.e. without preparation). What is the probability that X gets a score of at least 10 marks?
a) 0.9997
b) 0.7894
c) 0
d) 0.001
Answer: d) 0.001
Q10. State true or False: Statement: A distribution can either be discrete or continuous, it can’t be both at the same time.
a) True
b) False
Answer: True
Previous Year Data Analytics with Python NPTEL Week 2 Assignment Solutions
Q1. A college plans to interview 8 students for possible offers of graduate assistant-ships. The college has three assistant-ships available. How many groups of three can the college select?
a) 126
b) 56
c) 136
d) 130
Answer: b) 56
Q2. Which of the following is each individual outcome of an experiment called?
a) the sample space
b) a sample point
c) an experiment
d) an individual
Answer: b) a sample point
Q3. Two events having nonzero probabilities
a) can be both mutually exclusive and independent
b) cannot be both mutually exclusive and independent
c) are always mutually exclusive
d) are always independent
Answer: b) cannot be both mutually exclusive and independent
Q4. Ten individuals are candidates for positions of president, vice president of an organization. How many possibilities of selections exist?
a) 90
b) 100
c) 120
d) 130
Answer: a) 90
Q5. A standard normal distribution has:
a) Mean 1 and standard distribution 0
b) Mean 0.5 and standard distribution 0.5
c) Mean 0 and standard distribution 1
d) Mean 1 and standard distribution 1
Answer: c) Mean 0 and standard distribution 1
Q6. The weight of cows in a farm is normally distributed with a mean of 200 pounds and a standard deviation of 25 pounds. The probability of a cow weighing more than 241.25 pounds is:
a) 0.4505
b) 0.0495
c) 0.9505
d) 0.9010
Answer: b) 0.0495
Q7. The weight of cows in a farm is normally distributed with a mean of 200 pounds and a standard deviation of 25 pounds. What is the probability of a cow weighing less than 250 pounds?
a) 0.4772
b) 0.9772
c) 0.0528
d) 0.5000
Answer: b) 0.9772
Q8. State True or False: Statement: Binomial and normal Distributions are discrete probability distributions
a) True
b) False
Answer: b) False
Q9. For a binomial experiment with p = 0.5 and a sample size of 100. The expected value of this distribution is?
a) 0.50
b) 0.30
c) 100
d) 50
Answer: d) 50
Q10. State true or false. Statement: All mutually exclusive events are independent events
a) True
b) False
Answer: b) False
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