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3 years ago

If you flip a coin 3 times what is the probability you will get two heads and one tails?

Mathematics

1 answer:

Irina18 [472]3 years ago

6 0

50%

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Alisiya [41]

what? I'm sorry

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3 years ago

The height of a wave in California varies directly with the seconds that pass by. At 4 seconds, the wave is 6 feet high. Find th

alex41 [277]

K=3/2 Hope this help you

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3 years ago

(b) Develop a probability distribution for x y. x y f(x y) 130 Incorrect: Your answer is incorrect. 80 Incorrect: Your answer is

GenaCL600 [577]

Answer:

P(X = x, Y = y) = f(x, y)

Step-by-step explanation:

Let X be a discrete random variable, and suppose that the possible values that it can assume are given by x1, x2, x3, . . . , arranged in some order. Suppose also that these values are assumed with probabilities given by

P(X = xk) = f(xk) k = 1, 2, . . . (1)

It is convenient to introduce the probability function, also referred to as probability distribution, given by

P(X = x) = f(x)

If X and Y are two discrete random variables, we define the joint probability function

of X and Y by

P(X = x, Y = y) = f(x, y)

where f(x, y) ≥ 0

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3 years ago

Help plz.. x/6-1=1/3(9-3x)

solniwko [45]

Step-by-step explanation:

x/6-1=1/3(9-3x)

3(x-1) = 6(9-3x)

3x-3 = 54 - 18x

3x+18x=54+3

21x=57

X=57/21

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3 years ago

Write an equivalent expression for 7¹² × 7⁴

Anika [276]

Answer:

$\huge\boxed{7^{16}}$

Step-by-step explanation:

We can use exponent rules to try and simplify this expression down.

Exponent rules tell us that $x^a + x^b = x^{a+b}$ .

This means that since we have the same base on both terms (7 and 7), we can add the exponents to get a simplified expression.

$12 + 4 = 16$

So our simplified expression is $7^{16}$ .

Hope this helped!

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3 years ago