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andrew11 [14]
2 years ago
12

The sum of the squared deviation scores is s = 20 for a population of n = 5 scores. what is the variance for this population?

Mathematics
1 answer:
Svetradugi [14.3K]2 years ago
7 0
The answer is d-10
Hope it helps
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The sum of the 6th and seventh terms in a sequence of 12 numbers with a common difference is 16. What is the Sum of the number s
patriot [66]

Answer:

96

Step-by-step explanation:

commom difference = d

a₆ + a₇ = 16

a₅ + a₈ = (a₆ - d) + (a₇ + d) = a₆ + a₇ = 16

a₄ + a₉ = (a₆ - 2d) + (a₇ + 2d) = a₆ + a₇ = 16

Similarly,

a₃ + a₁₀ = 16, a₂ + a₁₁ = 16, a₁ + a₁₂ = 16

so

a₁ + a₂ + ... + a₁₁ + a₁₂ = 6 x 16 = 96

6 0
2 years ago
At the craft store, Mark bought a bag of blue and brown marbles. The bag contained 20 marbles, and 30% of them were blue. How ma
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Step-by-step explanation:

20 marbles * .30 are blue = blue marbles

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3 years ago
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Answer:

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Step-by-step explanation:

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lana66690 [7]

Answer:

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Step-by-step explanation:

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3 years ago
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