Math, asked by usman9234, 10 hours ago

The mean and standard deviations of two samples of sizes 80 and 40 are
15 and 10; and 8 and 5 respectively. Calculate the standard deviation of the combined
sample.

Answers

Answered by leexitjain1224
0

Answer:

The mean and standard deviations of two samples of sizes 80 and 40 are

15 and 10; and 8 and 5 respectively. Calculate the standard deviation of the combined

sample.

Step-by-step explanation:

.

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