IITM BS Question 4 - Week 10 Practice

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Q4Numerical3 Marks31 Aug 2025

The mean and variance of the observations x1, x2, x3, x4, x5 are 4 and 5 respectively. Suppose the mean and variance of the observations ax1+b, ax2+b, ax3+b, ax4+b, ax5+b are 16 and 45 respectively. Find the value of a+b, where a > 0.

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Q4

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31 Aug 2025

Statistics 1 · Week 10

Q4.The mean and variance of the observations x1, x2, x3, x4, x5 are 4 and 5 respectively. Suppose the mean and variance of the observations ax1+b, ax2+b, ax3+b, ax4+b, ax5+b are 16 and 45 respectively. Find the value of a+b, where a > 0.

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00:00

Q4Numerical3 Marks31 Aug 2025

The mean and variance of the observations x1, x2, x3, x4, x5 are 4 and 5 respectively. Suppose the mean and variance of the observations ax1+b, ax2+b, ax3+b, ax4+b, ax5+b are 16 and 45 respectively. Find the value of a+b, where a > 0.

Your answer

Press Enter to check.

Q4

00:00

31 Aug 2025

Statistics 1 · Week 10

Q4.The mean and variance of the observations x1, x2, x3, x4, x5 are 4 and 5 respectively. Suppose the mean and variance of the observations ax1+b, ax2+b, ax3+b, ax4+b, ax5+b are 16 and 45 respectively. Find the value of a+b, where a > 0.

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