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2 years ago

Number 2 help me plz

Mathematics

2 answers:

Verizon [17]2 years ago

7 0

Answer:

option (b)...........

nadya68 [22]2 years ago

3 0

Answer:

Step-by-step explanation:

cuz 2.5% students voted for the hippo and not 25%

can I get brainliest if I got it right?

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It was reported in 2019, the world’s tallest giraffe lives in Australia and measures 5.7 m . How tall is the giraffe in centimet

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14.478

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What is the length of the hypotenuse in the right triangle shown below?<br>

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Answer:

C. 6√2.

Step-by-step explanation:

Since this is a right angled isosceles triangle bot legs are 6 units long

So h^2 = 6^2 + 6^2 = 72

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A statistics textbook chapter contains 60 exercises, 6 of which are essay questions. A student is assigned 10 problems. (a) What

Scilla [17]

Answer:

a) P=0.3174

b) P=0.4232

c) P=0.2594

d) The shape of the hypergeometric, in this case, is like a binomial with mean np=1.

Step-by-step explanation:

The appropiate distribution to model this is the hypergeometric distribution:

$P(X=x)=\frac{\binom{s}{x}\binom{N-s}{M-x}}{\binom{N}{M}}=\frac{\binom{6}{x}\binom{54}{10-x}}{\binom{60}{10}}$

a) What is the probability that none of the questions are essay?

$P(X=0)=\frac{\binom{6}{0}\binom{54}{10-0}}{\binom{60}{10}}\\\\P(X=0)=\frac{1*(54!/(10!*44!)}{60!/(10!*50!)} =\frac{2.3931*10^{10}}{7.5394*10^{10}} = 0.3174$

b) What is the probability that at least one is essay?

$P(X=1)=\frac{\binom{6}{1}\binom{54}{9}}{\binom{60}{10}}\\\\P(X=1)=\frac{6*(54!/(9!*43!)}{60!/(10!*50!)} =\frac{3.1908*10^{10}}{7.5394*10^{10}} =0.4232$

c) What is the probability that two or more are essay?

$P(X\geq2)=1-(P(0)+P(1))=1-(0.3174+0.4232)=1-0.7406=0.2594$

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2 years ago

If a parallelogram has diagonals that are perpendicular bisectors of each other, what is the most descriptive name for it?

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Both a rhombus and a rectangle have diagonals that are perpendicular bisectors, but the ones formed in a square are all congruent, so that is probably the most descriptive one.

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2 years ago

HHEEEEEEELPPPPP, I'LL MARK THE BRAINLIEST

navik [9.2K]

Answer: 6 square 4

Step-by-step explanation:

i hope this helps

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