Senior Manager Analytics

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Senior Manager Analytics Interview Questions and Answers

Updated 16 Jan 2025

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Q1. You have 3 friends. The probability of each telling truth is 2/3. All saying it's raining. What's the probability that it's actually raining

Ans.

Probability of raining given 3 friends with 2/3 truth probability saying it's raining.

  • Use Bayes' theorem to calculate the probability

  • P(Raining | All Friends Saying It's Raining) = P(All Friends Saying It's Raining | Raining) * P(Raining) / P(All Friends Saying It's Raining)

  • P(All Friends Saying It's Raining | Raining) = 1

  • P(Raining) = Prior probability of raining

  • P(All Friends Saying It's Raining) = Probability of all friends saying it's raining

Q2. A wooden cube of 5 cm each side. Painted. Now cut to smaller cube of 1cm side each. How many smaller cubes have all sides paintee, 4 sides paintee, 3 sides painted etc.

Ans.

A 5cm wooden cube is cut into smaller 1cm cubes. Determine the number of cubes with different numbers of painted sides.

  • The original cube has 125 smaller cubes (5x5x5)

  • Each smaller cube has 6 faces, so there are 750 faces in total

  • The cubes on the edges have 3 painted sides, the ones on the corners have 3 painted sides, and the rest have 2 painted sides

  • There are 8 cubes on the corners, 12 on the edges, and 105 in the middle

  • There are 8 cubes with 3 painted sides, 36 with 2 painte...read more

Q3. How many zeroes in factorial 78

Ans.

There are 18 zeroes in factorial 78.

  • To find the number of zeroes in a factorial, we need to count the number of times 10 appears as a factor.

  • Since 10 = 2 x 5, we need to count the number of times 2 and 5 appear as factors.

  • Since there are more factors of 2 than 5 in factorial 78, we only need to count the number of times 5 appears as a factor.

  • We can use the formula n/5 + n/25 + n/125 + ... to count the number of times 5 appears as a factor in n!

  • Plugging in n = 78, we get 15 + ...read more

Q4. Live coding on SQL group by aggregation, joins, ranking?

Ans.

Demonstrate SQL skills in group by aggregation, joins, and ranking

  • Use GROUP BY clause to aggregate data based on a specific column

  • Utilize JOINs to combine data from multiple tables

  • Use ranking functions like ROW_NUMBER() to assign a rank to each row

Senior Manager Analytics Jobs

Senior Manager Analytics 3-5 years
RGB Webtech
0.0
Chandigarh
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