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Diano4ka-milaya [45]

4 years ago

7

suppose that you put $2,500 into a retirement account that grows with the interest rate of 5.15% compounded once each year after

how many years with the balance of the account will be at least $1,500.

1 answer:

Bezzdna [24]4 years ago

8 0

You are starting with $2,500 and you want to know when it will reach $1,500?
I think you've made a typo.

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A study was conducted to determine whether there were significant differences between medical students admitted through special

Mekhanik [1.2K]

Answer:

$P(X\geq 9)=P(X=9)+P(X=10)$

And using the probability mass function we got:

$P(X=9)=(10C9)(0.913)^9 (1-0.913)^{10-9}=0.383$

$P(X=10)=(10C10)(0.913)^{10} (1-0.913)^{10-10}=0.402$

And replacing we got:

$P(X \geq 9) = 0.383 +0.402= 0.785$

Step-by-step explanation:

Let X the random variable of interest "number of students graduated", on this case we now that:

$X \sim Binom(n=10, p=0.913)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

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

We want to find the following probability:

$P(X\geq 9)=P(X=9)+P(X=10)$

And using the probability mass function we got:

$P(X=9)=(10C9)(0.913)^9 (1-0.913)^{10-9}=0.383$

$P(X=10)=(10C10)(0.913)^{10} (1-0.913)^{10-10}=0.402$

And replacing we got:

$P(X \geq 9) = 0.383 +0.402= 0.785$

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4 years ago

Can somebody help me answer this question whoever gets it right will get branlist !

VladimirAG [237]

Answer: x=17

Step by Step:

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3 years ago

Write the pair of fractions as a pair of fractions with a common denominater 3/10 1/2

Serggg [28]

Answer:

3/10 and 5/10

Step-by-step explanation:

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Morgarella [4.7K]

Answer:

$\large\boxed{5\dfrac{3}{10}\ hectometers=530\ meters}$

Step-by-step explanation:

$PREFIXES\\\\mega\ (M)=10^6\\\\kilo\ (k)=10^3\\\\hecto\ (h)=10^2\\\\deko\ (da)=10\\\\decy\ (d)=10^{-1}=0.01\\\\centi\ (c)=10^{-2}=0.01\\\\mili\ (m)=10^{-3}=0.001\\\\mikro\ (\mu)=10^{-6}=0.000001$

$5\dfrac{3}{10}=5.3\\\\1\ hectometers=100\ meters\qquad(1\ hm=100m)\\\\5\dfrac{3}{10}\ hm=5.3\ hm=5.3\cdot100\ m=530\ m$

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3 years ago

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3 years ago