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stiks02 [169]
2 years ago
6

A party hat like the one on the right is going to be filled with candy. What is the volume of the hat?

Mathematics
1 answer:
Vika [28.1K]2 years ago
4 0
56 Its 56 because I multiplied 8 and 7 and got me 56
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There are three executives in an office, ages 56, 57, and 58. If a 57-year-old executive enters the room, the
vova2212 [387]

Answer:

option (c) The mean age will stay the same but the variance will decrease

Step-by-step explanation:

Case I: For 3 executives of ages 56, 57 and 58

Number of executives, n = 3

Mean = \frac{\textup{56 + 57 + 58 }}{\textup{3}}

or

Mean = 57

Variance = \frac{\sum{(Data - Mean)^2}}{\textup{n-1}}

or

Variance = \frac{(56 - 57)^2+(57-57)^2+(58-57)^2}{\textup{3-1}}

or

Variance = \frac{1+0+1}{\textup{2}}

or

Variance = 1

For Case II: For 4 executives of ages 56, 57, 58 and 57

Number of executives, n = 4

Mean = \frac{\textup{56 + 57 + 58 + 57 }}{\textup{4}}

or

Mean = 57

Variance = \frac{\sum{(Data - Mean)^2}}{\textup{n-1}}

or

Variance = \frac{(56 - 57)^2+(57-57)^2+(58-57)^2+(57-57)^2}{\textup{4-1}}

or

Variance = \frac{1+0+1+0}{\textup{3}}

or

Variance = 0.67

Hence,

Mean will remain the same and the variance will decrease

Hence,

The correct answer is option (c) The mean age will stay the same but the variance will decrease

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3 years ago
Easy simple problem i wanna ask just because 1+1=?
AfilCa [17]
2 because according to the Oxford dictionary I have scan
8 0
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Fiona rolls a fair dice 192 times.<br> How many times would Fiona expect to roll a three?
kap26 [50]

Answer:

32

Step-by-step explanation:

6 0
3 years ago
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I NEED HELP PLEASE!!!
meriva

Answer:

a

Step-by-step explanation:

3 0
3 years ago
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What is the measure, in degrees, of an angle that represents 50/350 of a circle?
JulsSmile [24]

Answer:

\mathrm{A.\: 50^{\circ} }

Step-by-step explanation:

Since there are 360 degrees in a circle, we can set up the following proportion:

\frac{50}{360}=\frac{x}{360},\\360x=50\cdot 360,\\x=\boxed{50}

8 0
3 years ago
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