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Bogdan [553]
3 years ago
14

Carol opened 20 different bags of the same kind of candy and recorded the colors and their frequencies, as shown in the table.

Mathematics
2 answers:
Alina [70]3 years ago
7 0
It is 14% as you add up all of the numbers and divide 10 by that number and finally multiply by 100 for a percent
alukav5142 [94]3 years ago
6 0

Answer:

A-14%

Step-by-step explanation:

We are given a table as

Color                Red   Blue   Green   Purple

Frequency        10      16      28          18

Relative frequency is calculated as

           \dfrac{frequency}{sum of frequencies}\times 100

Hence, relative frequency for red=

      \dfrac{10}{10+16+28+18}\times 100

=     \dfrac{10}{72}\times 100

=   13.88%

≈  14%

Hence, the correct option is:

A- 14%

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A light bulb has a lifetime X that is exponentially distributed with a mean 340 hours. Find the probability that the bulb lifeti
LUCKY_DIMON [66]

Answer:

0.7026

Step-by-step explanation:

Let X denote the lifetime of light bulb. Given X \sim Exp(\lambda) where the mean is E(X) = 340 =\frac{1}{\lambda} \implies \lambda = \frac{1}{340} = 0.00294.

Recall that,

\displaystyle P(X>x) = 1 - \int_0^x e^{-\lambda x} = 1 - (1 - e^{-\lambda x} = e^{-\lambda x}

\displaystyle P(X>220 | X>100) = \frac{P(X>220,X>100)}{P(X>100)} = \frac{e^{-\lambda \times 220}}{e^{-\lambda \times 100}} = \frac{0.5236}{0.7452} = 0.7026

7 0
3 years ago
Find the exact length of the third side
devlian [24]
You can use the Pythagorean theorem, a^2+b^2=c^2, to solve this.

b= square-root of (c^2)-(a^2)

b= square-root of (9^2)-(2^2)

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5 0
3 years ago
What is 1/3 equal too
sattari [20]
The numerator in a fraction represents the number of pieces selected. If the numerator is larger than the denominator, the number is larger than one

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1/3 =  0.333.... \ \ \ \ \ 33.333.....Percent
8 0
3 years ago
Which is a characteristic of centrifugal acceleration
goldfiish [28.3K]

Answer: Centripetal acceleration is the idea that any object moving in a circle will have an acceleration vector pointed towards the center of that circle. Centripetal means towards the center. Even an object moving at a constant speed around a circle won't have a constant velocity.

6 0
3 years ago
Please help me thank you I appreciate it
Volgvan

Answer:

68°

Step-by-step explanation:

PRQ = SRQ gives:

3x-8 = 2x+6

x = 6+8 = 14

So PRQ = SRQ = 34

and

PRS = PRQ+SRQ = 68

4 0
3 years ago
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