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3 years ago

12

A scoop from the assorted jelly bean bin contained 42 jelly beans, including 6 banana ones. Considering this data, how many of t

he next 84 jelly beans scooped from the bin should you expect to be banana jelly beans?

1 answer:

irina1246 [14]3 years ago

6 0

well 6 out of 42 is 1/7

double 42 and get 84.

Now to keep it even, you have to multiply 6x2

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Answer this question please ASAP!!!

Ymorist [56]

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If helped mark me the brainiest!!

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2 years ago

What's the value of 1/4 - 7/6

Anton [14]

The answer is -11/12

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3 years ago

The expected number of typographical errors on a page of a certain magazine is .2. What is the probability that an article of 10

Pavel [41]

Answer:

a) The probability that an article of 10 pages contains 0 typographical errors is 0.8187.

b) The probability that an article of 10 pages contains 2 or more typographical errors is 0.0175.

Step-by-step explanation:

Given : The expected number of typographical errors on a page of a certain magazine is 0.2.

To find : What is the probability that an article of 10 pages contains

(a) 0 and (b) 2 or more typographical errors?

Solution :

Applying Poisson distribution,

$N\sim Pois(0.2)$

$P(N=r)=\frac{e^{-np}(np)^r}{r!}$

where, n is the number of words in a page

and p is the probability of every word with typographical errors.

Here, n=10 and E(N)=np=0.2

a) The probability that an article of 10 pages contains 0 typographical errors.

Substitute r=0 in formula,

$P(N=0)=\frac{e^{-0.2}(0.2)^0}{0!}$

$P(N=0)=\frac{e^{-0.2}}{1}$

$P(N=0)=e^{-0.2}$

$P(N=0)=0.8187$

The probability that an article of 10 pages contains 0 typographical errors is 0.8187.

b) The probability that an article of 10 pages contains 2 or more typographical errors.

Substitute $r\geq 2$ in formula,

$P(N\geq 2)=1-P(N$

$P(N\geq 2)=1-[P(N=0)+P(N=1)]$

$P(N\geq 2)=1-[\frac{e^{-0.2}(0.2)^0}{0!}+\frac{e^{-0.2}(0.2)^1}{1!}]$

$P(N\geq 2)=1-[e^{-0.2}+e^{-0.2}(0.2)]$

$P(N\geq 2)=1-[0.8187+0.1637]$

$P(N\geq 2)=1-0.9825$

$P(N\geq 2)=0.0175$

The probability that an article of 10 pages contains 2 or more typographical errors is 0.0175.

6 0

3 years ago

Will give brainliest!

fiasKO [112]

Let's give some distances
100 up 100 flat 100 down meters
then return 100 up 100 flat 100 down

time required (distance/rate = time ) 200/100 + 200/120 + 200 / 150 = 5 hr

distance 600

distance / time = average speed = 600/5 = 120 m/s

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2 years ago

3/4 ÷ 5 1/2 please explain the steps

Mademuasel [1]

The easiest way to do it is to make the numbers into decimals. All you need to do is divide them.

To convert 3/4 into a decimal just divide 3 by 4.

3 / 4 = .75

To get 5 1/2 into a decimal just ignore the 5 for now and divide the 1 by 2.

1 / 2 = .5

Now add the 5 back on and you have 5.5

So far you have converted the equation from (3/4) / 5 1/2 to .75 / 5.5

Now just divide .75 by 5.5

.75 / 5.5 = 1.136 with the 36 repeated

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3 years ago