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Veronika [31]
3 years ago
7

Explain why the probability mass function p(x = 1000) = 0.1, p(x = 1500) = 0.2, p(x = 2000) = 0.3, p(x = 2500) = 0.3, p(x = 3000

) = 0.1 is absurd as a distribution for the number of phone calls to a help-desk call center during a day.
Mathematics
1 answer:
OlgaM077 [116]3 years ago
5 0
Chances are a call center will rarely receive *exactly* 1000 calls, or 1500, or 2000, ...

A more likely choice would be, for instance, \mathbb P(X\le1000)=0.1, \mathbb P(1000, ...
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A catalog is discounting all sweaters 25%. How much will you pay for a sweater that is regularly $49.99? (A) $24.99 (B) $37.49 (
rodikova [14]
B becuase of 49.99 times .75
6 0
3 years ago
What is the answer?? Please help me
Sergeeva-Olga [200]

Answer:

<u>k-4</u><u>=</u><u>9</u>

<u>k</u><u>=</u><u>9</u><u>+</u><u>4</u>

<u>k</u><u>=</u><u>1</u><u>3</u><u> </u>

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6 0
2 years ago
The answer is 48 can someone explain how?
mestny [16]

Answer:

<h2>48</h2>

Step-by-step explanation:

(1)

apple × apple × 2apple = 54

2apple³ = 54    <em>divide both sides by 2</em>

apple³ = 27 → apple = ∛27

apple = 3

(2)

apple + apple × green_apple = 24   <em>substituite apple = 3</em>

3 + 3 × green_apple = 24        <em>subtract 3 from both sides</em>

3 × green_apple = 21         <em>divide both sides by 3</em>

green_apple = 7

(3)

strawberry - bannana - banana = 0 → strawberry = 2banana

(4)

strawberry + banana + cherry = 24     <em>substitute from (3)</em>

2banana + banana + cherry = 24

3banana + cherry = 24

(5)

apple + banana - cherry = -1          <em>substitute apple = 3</em>

3 + banana - cherry = -1         <em>subtr3 from both sides</em>

banana - cherry = -4

Add both sides of (4) and (5)

 3banana + cherry = 24

<u>+banana - cherry = -4       </u>

4banana = 20       <em>divide both sides by 4</em>

banana = 5

Substitute it to (4):

3(5) + cherry = 24

15 + cherry = 24      <em>subtract 15 from both sides</em>

cherry = 9

Substitute to the last equation:

3 + 5 × 9 = 3 + 45 = 48

/USED PEMDAS/

7 0
3 years ago
I cant figure this out please somome help me please!!!​
Nastasia [14]

Just saying BTW that this isn't a mathematics questions per say.

The main reason why cities are placed on coasts is so they are able to trade their goods with other nations abroad, as well as other coastal cities in their own region.

5 0
3 years ago
Find the mean and the median of this data set: 9,6,3,28,6,4,7​
Damm [24]

Answer:

Mean is 9

Median is 6

Step-by-step explanation:

Mean is the average and the median is the middle of the numbers in order:)

3 0
2 years ago
Read 2 more answers
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