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3 years ago

The temperature in Allenville fell from 25°F to -23°F in 8 minutes. What's the average change in temperature per minute?

Mathematics

1 answer:

natka813 [3]3 years ago

6 0

Answer:

6 Degrees per minute

Step-by-step explanation:

25 + 23 = 48

48 divided by 8 = 6

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Answer:

(a)

$\begin{array}{cccc}{X} & {-\$1.00} & {\$0.00} & {\$4.00} \ \\ {P(X)} & {0.75} & {0.125} & {0.125} & \ \end{array}$

(b)

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Step-by-step explanation:

Given

See attachment for spinner

Solving (a): Complete the table

The amount paid is: $1

From the attached image, we have:

$0 = 6; $1 = 1; $5 = 1

To get the profit, we subtract $1 from the possible outcomes of the spinner.

So, we have:

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The probability of each is then calculated as:

$P(-\$1.00) = \frac{6}{8} = 0.75$

$P(-\$0.00) = \frac{1}{8} = 0.12$

$P(-\$4.00) = \frac{1}{8} = 0.12$

So, the complete table is:

$\begin{array}{cccc}{X} & {-\$1.00} & {\$0.00} & {\$4.00} \ \\ {P(X)} & {0.75} & {0.125} & {0.125} & \ \end{array}$

Solving (b): The expected profit E(x)

This is calculated as:

$E(x) = \sum x * P(x)$

$E(x) = -1.00 * 0.75 + 0.00 * 0.125 + 4 * 0.125$

$E(x) = -\$0.25$

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3 years ago

The temperature in Allenville fell from 25°F to -23°F in 8 minutes. What's the average change in temperature per minute?​

The temperature in Allenville fell from 25°F to -23°F in 8 minutes. What's the average change in temperature per minute?