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3 years ago

PLEASE HELP I NEED ANSWER ASAP!! <3 (photo included)

Mathematics

1 answer:

Nezavi [6.7K]3 years ago

8 0

Answer: it would be A

Step-by-step explanation:

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Assume the number of typo errors on a single page of a book follows Poisson distribution with parameter 1=3. Calculate the proba

asambeis [7]

Answer:

(i). 0.03981

(ii).0.0048

Step-by-step explanation:

The probability density function of Poisson distribution is:

$P(X=x,\lambda)=\frac{e^{-\lambda}\lambda^x}{x!} \; \;\;\,\; x=0,1,2,...$

Consider X is a number of typos error on a single page of a book and X follows the Poisson distribution with $\lambda = \dfrac{1}{3}$

(i) Exactly two typos:

$\begin{aligned}P(X = 2,\frac{1}{3})&=\frac{e^{-\frac{1}{3}}\frac{1}{3}^{2}}{2!}\\&=\frac{e^{-\frac{1}{3}}}{18}\\&=0.03981\end{aligned}$

(ii) Two or more typos:

$\begin{aligned}P(X\geq2,\frac{1}{3})&=1-[P(X=0)+P(X=1)+P(X+2)]\\&=1-[0.7165+0.2388+0.03981]\\&=1-0.9952\\&=0.0048\end{aligned}$

7 0

4 years ago

The first term is 1 in the geometric sequence 1,-3,9,-27,...what is the seventh term of the geometric sequence?

dezoksy [38]

729 because all you do is multiply the previous number by -3

7 0

3 years ago

Please Help! A group of tourists can be sorted into tour boats in groups of 4 or in groups of 6. In either case, there are no em

ozzi

Answer:

36 is the correct answer.

Step-by-step explanation:

It is given that there are a group of tourists that can be sorted in a group of either 4 or 6 so that there are no empty seats.

It means that the total number of seats should be a multiple of both 4 and 6.

For finding such a number we can simply find out LCM (Least Common Multiple) of 4 and 6.

LCM of two numbers p and q is the minimum number which can be completely divided by both the numbers p and q.

Let us find the LCM of 4 and 6 here, using the factors:

4 = 2 $\times$ 2

6 = 2 $\times$ 3

The common factor(shown as underlined) is used only once in the LCM.

So, LCM = 2 $\times$ 2 $\times$ 3 = 12

So, 12 is the minimum number which can be divided by 4 and 6 both.

But, we are given a condition that number of tourists are more than 25 and lesser than 45. So, the number of seats can be in between 25 and 45.

Now, let us see multiples of 12:

12, 24, 36, 48, 60, ......

The number that lies between 25 and 45 is 36.

So, the number of total seats can be 36.

5 0

4 years ago

lisa and valerie are picnicking in troughcreek state park in pennsylvania. lisa has bought a salad that she made with 3/4 cup of

Anna71 [15]

When I transfer all those fractions into a fraction with a denominator of 18, I get 30.5/18. From there, a little more math is needed however.

6 0

4 years ago

Read 2 more answers

Please answer will reward with brainliest if you give me the answer and an explanation.

elena-s [515]

Answer:

Root 37

Step-by-step explanation:

All of the others are square numbers so they have no decimal numbers. Root 37 = 6.08...... making it an irrational number.

8 0

3 years ago