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r-ruslan [8.4K]
3 years ago
12

What shape has 5 vertices and 3 sides

Mathematics
1 answer:
lana66690 [7]3 years ago
6 0

Answer:

a polygon

Step-by-step explanation:

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Or<br> Solve for q.<br> 5 – 4q ≤ –3
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q >= 2

Step-by-step explanation:

5 - 4(2) <= 3

5 - 8 <= 3

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There are 366 days in a leap year and 24 hours in a day. How many hours are in a leap year?
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1. The monthly rents for studio apartments in a certain city have a mean of $920 and a standard deviation of $190. Random sample
Veronika [31]

Answer:

1)Mean=920 $

2)Standard Error =S.E.=38

3)more likely to take place Event 25 studio apartments with a mean rent between $901 and $939

Step-by-step explanation:

Given:

True mean =920 $

S.D=190 $

No .of samples=25

To Find:

1)Mean of sample.

2)S.E

Solution:

Now , the mean for given sample distribution is  given as 920 $

Hence Mean =920 $

Now calculating the Standard error

S.E.= S.D./Sqrt(n)

=190/Sqrt(25)

=190/5

=38

Therefore the Standard error is about 38 .

a) When n=1 then P(901≤X≤939)

So,

Z1=(901 -920)/190/Sqrt(1)]

Z1=-0.1

Z2=(939-920)/(190/Sqrt(1)]

Z2=0.1

So

Pr(-0.1≤Z≤0.1)=P(Z≤0.1)-P(Z≤-0.1)

=0.5398-0.4602

=0.0797  % chance of the sample distribution

b)n=25 then P(901≤X≤939)

Z1=(901-920)/S.E

Z1=-19/38=

Z1=-0.5

And Z2=0.5

So,

Pr(-0.5≤Z≤0.5)

=Pr(Z≤0.5)-Pr(Z≤-0.5)

=0.6915-0.3085

=0.3829

i.e 38.29 % chance of the sample distribution

Hence More likely to take place will be a sample of 25 studio apartments with a mean rent between $901 and $939.

0.3829>0.0797.

Because the probability of causing above event is more than the option A.

3 0
3 years ago
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