Suppose that for a given computer salesperson, the probability distribution of x = the number of systems sold in 1 month is given by the following table. 1 2 3 4 5 7 8 p(x) 0.04 0.10 0.13 0.30 0.30 0.11 0.01 0.01 (a) Find the mean value of x (the mean number of systems sold). (b) Find the variance and standard deviation of x. (Round your standard deviation to four decimal places.) variance standard deviation How would you interpret these values? (Round your standard deviation to four decimal places.) The mean squared deviation from the mean number of systems sold in one month is sold in one month is A typical deviation from the mean number of systems (c) What is the probability that the number of systems sold is within 1 standard deviation of its mean value? (d) What is the probability that the number of systems sold is more than 2 standard deviations from the mean?

Q: 5. 8. 45°

A: Solve for value x

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A: Given: 73+45+13 To find: We have to calculate the value.

Q: 4 3- 1 -6 -5 -4 -3 -2 2 3 4 6. 2 -3 4 2. 3.

A:

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A: 14 Consider the sine angle property is, sinx=perpendicularhypotenuse

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A: trigonometry rule

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Q: 18. 32 13

A:

Q: 14.

A: I have used theorem for circle

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A: Please see the explanation below

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A:

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A: It's trigonometric question so I'm providing hand written solution for better understanding.

Q: Find the circumference of each circle. Leave your answer in terms of T.

A: The circumference of a circle with radius r is 2πr.

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A: Sum of numbers

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A: Case 1: Let the given number be in mixed fraction notation.

Q: 7. 45

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Q: 8. 2 k=1 3k

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Q: Find the circumference of each circle. Leave your answer in terms of T.

A: From the image of the circle, we see that the radius=r=3.9 units

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Q: | = +x 6.

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Q: 2.73-0.94

A: Here we subtract a number in another number.

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Q: 18.5x9.40

A: To calculate: 18.5 × 9.40

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A: Here we have,  4(2w-5)=5w+4 ................................ (1)

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A: Algebraic operations help to find the required value. Multiplication of the negative sign with the…

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A: Given,