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Luba_88 [7]
4 years ago
10

What is the purpose of calculating a confidence interval?

Mathematics
1 answer:
lidiya [134]4 years ago
7 0

Answer:

Is to give us a range of values for our estimated population parameter rather than a single value or a point estimate.

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What multiplies to -15 and adds to -3
bagirrra123 [75]
That’s not possible but it added to -2 it would be possible
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3 years ago
verified A package of 6 pairs of insulated socks costs 47.34 .what is the unit price of the pairs of sock
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If your wondering how much each pair costs individually then its 7.89 per pair

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A rocket is launched from a tower. The height of the rocket, y in feet is related to the time after launch, x in seconds, by the
gizmo_the_mogwai [7]

Step-by-step explanation:

The height of the rocket y in feet is related to the time after launch, x in seconds, by the given equation i.e.

y=-16x^2+165x+78 ......(1)

It is required to find the maximum height reached by the rocket. For maximum height put \dfrac{dy}{dx}=0.

So,

\dfrac{d(-16x^2+165x+78)}{dx}=0\\\\-32x+165=0\\\\32x=165\\\\x=5.15\ s

Put x = 5.15 in equation (1).

y=-16(5.15)^2+165(5.15)+78\\\\y=503.39\ m

So, the maximum height reached by the rocket is 503.39 m.

5 0
4 years ago
a car dealer buys a new car for 24,500 the dealer then marks the cars price up 27% what is the selling price of the car
Gelneren [198K]
$24500 multiply by 27%= $6,615 There , $24500( initial price ) + $6,616= $31,115 ( as the new price).
3 0
3 years ago
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You deposit all of your graduation money, $2,560, into an account earning 3.5% interest, compounded annually. You want to let it
gladu [14]

Answer:

To calculate compounded interest, use the compound interest formula.

A(t)=P(1+rn)n⋅t

Recognize the information given in the problem.

P=2560,r=0.035,n=1,t=4

Substitute the values into the appropriate position in the formula.

A(4)=2560(1+0.0351)1⋅4

Simplify by multiplying and dividing by 1.

A(4)=2560(1+0.035)4

Simplify using the order of operations.

A(4)=$2,937.66

The balance at the end of 4 years would be $2,937.66.

Step-by-step explanation:

5 0
2 years ago
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