Define convex hull?

94

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Write the formula to calculate r-square?

117

---

Explain k-mean?

97

---

Explain recommender system?

88

---

Explain the two main components of the hadoop framework?

80

---

Define analytics?

73

---

Explain the difference between data modeling and database design?

81

---

Define data reduction?

80

---

Explain data munging or data wrangling?

89

---

Define linear regression?

100

---

Define feature vector?

153

---

Explain the difference between sas, r and python programming?

116

---

Explain data cleansing?

94

---

Explain the differences between univariate, bivariate and multivariate analysis?

88

---

Explain the difference between bayesian estimate and maximum likelihood estimation (mle)?

115

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