Each student in a class of 25 students wrote down a random digit. what is the predicted number of students who will win a digit that is greater than 7?

Answers

Answer 1

Answer: Comment
I'm going to assume that 0 is below 1 and not above 9. Furthermore that there are 10 digits altogether.

Argument
I may not understand the problem, but I think it means that how many students will randomly choose an 8 or 9.

Since both can come up (randomly) 1/10 of the time, it would seem to me that the answer should be

1/10 * 25 + 1/10 * 25 = 5

so 5/25 students will come up with an 8 or 9.
so P(8 or 9) = 0.2 <<<< answer

Note
Any two digits should give you the same result.

Answer 2

Answer:

Answer:

Step-by-step explanation:

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5. Taking a cruise is a costly discretionary expense. In a recent year, the top fivecruise lines in the world had this many passengers:
4,133,000 2,369,000 1,295,000 928,000 679,000
Round your answers to the nearest integer.
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b. What is the mean number of passengers for these five cruise lines? (Give
the full number.)
c. What is the range? (Give the full number.)
d. What is the standard deviation? (Give the full number.)

Answers

Final answer:

The numbers in thousands are: 4133, 2369, 1295, 928, 679. The mean is 1881 thousand passengers, the range is 3454 thousand passengers, and the standard deviation is approximately 1218 thousand passengers.

Explanation:

Part A: To represent each number in terms of thousands of passengers, we simplify them as follows: 4,133,000 is 4,133 thousands of passengers, 2,369,000 is 2,369 thousands, 1,295,000 is 1,295 thousands, 928,000 is 928 thousands, and 679,000 is 679 thousands.

Part B: To calculate the mean number of passengers, you would add up all the passenger numbers and then divide by the number of values (5 in this case). This adds up to 9,404,000 passengers or, in terms of thousands, 9,404. Divided by 5, this gives a mean of 1,880,800 passengers, or 1,881 thousands of passengers.

Part C: The range is calculated by subtracting the smallest number from the largest. In this case, that would be 4,133,000 - 679,000 = 3,454,000, which is also 3,454 thousands of passengers.

Part D: Calculating the standard deviation involves multiple steps. First, for each value, subtract the mean and square this result. Then, calculate the mean of these squared differences. Finally, take the square root of this mean. Doing so, the standard deviation is approximate 1,217,982 passengers, or 1,218 thousands of passengers.

Learn more about Statistics here:

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4(12+3) distributive property

Answers

$\huge\textsf{Hey there!}$

$\large\textsf{4(12 + 3)}$

$\large\textsf{= 4(12) + 4(3)}$

$\large\textsf{4(12) = \bf 48}$

$\large\textsf{4(3) = \bf 12}$

$\large\textsf{= 48 + 12}$

$\large\textsf{= \bf 60}$

$\boxed{\large\textsf{Answer: \huge 60}}\large\checkmark$

$\large\text{OR} \downarrow$

$\large\textsf{4(12 + 3)}$

$\large\textsf{12 + 3 = \bf 15}$

$\large\textsf{= 4(15)}$

$\large\textsf{= \bf 60}$

$\boxed{\large\textsf{Answer: \huge 60}}\large\checkmark$

$\boxed{\boxed{\large\textsf{OVERALL \underline{ANSWER}: \huge \bf 60}}}\huge\checkmark$

$\huge\checkmark\boxed{\boxed{\large\textsf{Or you can say: \huge \bf 48 + 12}}}\huge\checkmark$

$\large\text{Good luck on your assignment and enjoy your day!}$

~ $\frak{Amphitrite1040:)}$

$\huge\boxed{\mathfrak{Answer}}$

$4(12 + 3) \n = 4 * 12 + 4 * 3 \n = 48 + 12 \n = 60$

=> Property used = distributive property.

Solve for the value of c.

Answers

c=15, (Check) 7(15)=105, 105-7=98; 6(15)=90, 90-8=82. 98+82=180

Factor completely: 4d^3+3d^2-14d

Answers

I got d(4d2+3d−14) hope it help

Make m the subject when g=square root sign over m-5

Answers

Answer:

m = g² + 5

Step-by-step explanation:

Step 1: Write equation

g = √(m - 5)

Step 2: Solve for m

Square both sides: g² = m - 5
Add 5 to both sides: g² + 5 = m
Rewrite: m = g² + 5

Consider an optimization model with a number of resource constraints. Each indicates that the amount of the resource used cannot exceed the amount available. Why is the shadow price of such a resource constraint always zero when the amount used in the optimal solution is less than the amount available?

Answers

Shadow pricing refers to the practice of accounting the prince of securities not on their assigned market value (as might be expected) but by their amortized costs. This can also be considered an "artificial" price assigned to a non-priced asset or accounting entry.

In this optimization model, we find a number of resource constraints which limit the changes to the resources. It is expected that these resources would not exceed the amount allocated for each particular constraint. The shadow price of a resource constraint would be zero in this example because the amount used would be less than the amount available. This means that it can fit within the established parameters, and therefore, would not need to be assigned a shadow price.

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