Problem No.9 The following measurements were recorded for the 28th day compressive strengths of 10 samples for a class AA concrete, 27.5; 26; 28; 28.3; 27.8; 28; 27.9; 26.9; 27; 27.6 Compute the sample variance and sample standard deviation.

Q: How do I solve this?

A: given number of people probability 1 0.25 2 0.32 3 ? 4 ? 5 0.07 6 0.03 7+ 0.01…

Q: help me solve the problem number 10

A: This question can be solved using formula for reducing powers cos A2=1+cos(2A)2

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A: The weight of male babies less than 2months old in the US is normally distributed with mean…

Q: We are working in R². Let & be the standard basis, B be the basis formed by {(2, 1), (0, −1)}, and C…

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Q: In a test of the effectiveness of garlic for lowering cholesterol, 45 subjects were treated with…

A: a. The best point estimate is 5.4 mg/dL. The best point estimate for the population mean net change…

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A: GIVEN: 6 - x - x2  if x ≤ 32x - 5         if x > 3

Q: I don't understand the writing like that. Can someone write the solution neatly? Thank you!

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Q: please explain how to solve this problem

A: *used power rule

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Q: I'm having trouble with this but can I get a and b for this problem thank you!

A: n1=80, x1=64 n2=60, x2=39 X: people got sick 1: Ate fish 2: Did not eat fish

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A: Given that: The table ,

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A: Given vectors: Denote the given two vectors as A and B.

Q: Please solve for the attached image, thanks!

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A: We have to find the digit in thousand place  of the product.

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A: Topic - slope of function To find slope at a point ,take two points on the line and calculate slope…

Q: how do we go about solving the last two parts?

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Q: (d) If the mean score was u = 157 with standard deviation o = 19, what was the final exam score for…

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A: 1,2,3....,23,24,25 are called element of set S.  Hence, set S has 25 element which mean n(S) = 25…

Q: Hello sir or madam, the answer is not going through. I tried to work it, but im not able to solve…

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