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3 years ago

Find the value of X.

Mathematics

1 answer:

Tju [1.3M]3 years ago

4 0

Answer:

A number

Step-by-step explanation:

it cant be nothing

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Find Endpoint from midpoint and endpoint

barxatty [35]

-2,-7 because you go the same ammount in the opposite direction

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3 years ago

Assume the random variable x has a binomial distribution with the given probability of obtaining a success. Find the following.

borishaifa [10]

Answer:

P(x > 10) = 0.6981.

Step-by-step explanation:

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

In this question:

$n = 14, p = 0.8$

P(x>10)

$P(x > 10) = P(X = 11) + P(X = 12) + P(X = 13) + P(X = 14)$

In which

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 11) = C_{14,11}.(0.8)^{11}.(0.2)^{3} = 0.2501$

$P(X = 12) = C_{14,12}.(0.8)^{12}.(0.2)^{2} = 0.2501$

$P(X = 13) = C_{14,13}.(0.8)^{13}.(0.2)^{1} = 0.1539$

$P(X = 14) = C_{14,14}.(0.8)^{14}.(0.2)^{0} = 0.0440$

$P(x > 10) = P(X = 11) + P(X = 12) + P(X = 13) + P(X = 14) = 0.2501 + 0.2501 + 0.1539 + 0.0440 = 0.6981$

So P(x > 10) = 0.6981.

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2 years ago

Camille's Cupcakes spends $032 to make one cupcake. They sell each cupcake for $1.40. How much profit will the shop make if they

Zepler [3.9K]

16.2 is the answer
Hehe

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3 years ago

Jaleel made three times as many baskets as John during basketball practice, write a ratio of the following description.

Ket [755]

Basically john made x baskets
jaleel made 3 times x or 3x baskets

so if Jaleel to John then
3x:1x=3:1
if John to Jaleel then
1x:3x=1:3

the ratio is 1:3 or 3:1 depending on who is on which side

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2 years ago

It’s timed can sb please help me

alex41 [277]

Answer:

Step-by-step explanation:

The intersection of the graphs is at (-3,4).

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2 years ago

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