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agasfer [191]
3 years ago
5

Jayden rotates a trapezoid around its vertical axis of symmetry to make a solid figure. What is the shape of a vertical cross se

ction of the solid figure?
A)square
B)triangle
C)rectangle
D)trapezoid
Mathematics
1 answer:
nirvana33 [79]3 years ago
8 0
<span>Jayden rotates a trapezoid around its vertical axis of symmetry to make a solid figure. The shape of a vertical cross section of the solid figure is D. a trapezoid.
The vertical cross section of the solid figure is the same as the figure itself, at least in this case.
</span>
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Step-by-step explanation:

We use Binomial distribution here , where the probability of getting x success in n trials is given by :-

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As per given , we have

The probability that any satellite dish owners subscribe to at least one premium movie channel.  : p=0.10

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Let x denotes the number of dish owners in the sample subscribes to at least one premium movie channel.

1) The probability that none of the dish owners in the sample subscribes to at least one premium movie channel = P(X=0)=^4C_0(0.10)^0(1-0.10)^{4}

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2) The probability that more than two dish owners in the sample subscribe to at least one premium movie channel.

= P(X>2)=1-P(X\leq2)\\\\=1-[P(X=0)+P(X=1)+P(X=2)]\\\\= 1-[0.6561+^4C_1(0.10)^1(0.90)^{3}+^4C_2(0.10)^2(0.90)^{2}]\\\\=1-[0.6561+(4)(0.0729)+\dfrac{4!}{2!2!}(0.0081)]\\\\=1-[0.6561+0.2916+0.0486]\\\\=1-0.9963=0.0037

∴ The probability that more than two dish owners in the sample subscribe to at least one premium movie channel is 0.0037.

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