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3 years ago

10

The experimental probability of selecting music is 8 out of 50 students at DMS. Predict the probability of students selecting mu

sic if there were 250 students surveyed?
A
1/2

B
8/50

C
8/250

D
4/25

1 answer:

Kruka [31]3 years ago

6 0

The answer is b . 8/50

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Find the value of $ 15,000 at the end of one year if it is invested in an account that has an interest rate of 4.95 % and is com

lora16 [44]

A)

$\bf \qquad \textit{Compound Interest Earned Amount}
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A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
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P=\textit{original amount deposited}\to &\$15000\\
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b)

$\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\$15000\\
r=rate\to 4.95\%\to \frac{4.95}{100}\to &0.0495\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
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\end{array}\to &365\\
t=years\to &1
\end{cases}
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c)

$\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\$15000\\
r=rate\to 4.95\%\to \frac{4.95}{100}\to &0.0495\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
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4 years ago

please help me. i don’t know how the answer is 1/12 so can you guys please explain step by step on why the answer is 1/12.

Tom [10]

Answer:

see explanation

Step-by-step explanation:

P(head) = $\frac{1}{2}$

P(4) = $\frac{1}{6}$

P(head and 4 ) = P(head) × P(4) = $\frac{1}{2}$ × $\frac{1}{6}$ = $\frac{1}{12}$

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