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3 years ago

Anyone know the answer? Also could you put down what equation I’m supposed to use?

Mathematics

1 answer:

goldenfox [79]3 years ago

5 0

Answer:

The bottom two are your answers.

Step-by-step explanation:

What you do is use the slope formula which is y_2-y_1/x_2-x_1.

So for PQ it will be 12(which is y_2)-6(which is y_1)/4(which is x_2)-5(which is x_1) which equals -6.

12-6/4-5=-6.

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Tickets to a rock concert cost $32.50 each. The school choir bought 54 tickets for the Saturday concert and 33 tickets for the S

Alenkasestr [34]

Answer:

$2827.5

Step-by-step explanation:

Cost of each ticket = $32.50

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Cost for Saturday concert = 32.50 × 54

= $1755

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3 years ago

If x has a continuous uniform distribution on the interval (0,5), what is the 25th percentile for x?

Natasha_Volkova [10]

Given that $X\sim\mathrm{Unif}(0,5)$ , it has PDF

$f_X(x)=\begin{cases}\dfrac15&\text{for }0\le x\l5\\\\0&\text{otherwise}\end{cases}$

and thus CDF

$F_X(x)=\mathbb P(X\le x)=\begin{cases}0&\text{for }x$

The 25th percentile is the value $X=k$ such that $\mathbb P(X\le k)=0.25$ . We have

$\mathbb P(X\le k)=\dfrac k5=0.25\implies k=1.25$

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3 years ago