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3 years ago

Maths!!!!!!! Help!!!!

Mathematics

1 answer:

8_murik_8 [283]3 years ago

4 0

A) Angle A=100 Angle B=70 Angle C=110   Angle D=55

b) Angle A= 45 Angle B= 45   Angle C= 115

c) Angle P=95 Angle Q=30   Angle R=80   Angle S=110   Angle T=70

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Assume that BK Call Center receives 2 phone calls in one hour on average. If the department works 10 hours a day receiving the c

MrMuchimi

Using the Poisson distribution, the probabilities are given as follows:

A. 0.0888 = 8.88%.

B. 0.1354 = 13.54%.

C. 0.8646 = 86.46%.

<h3>What is the Poisson distribution?</h3>

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by:

$P(X = x) = \frac{e^{-\mu}\mu^{x}}{(x)!}$

The parameters are:

x is the number of successes

e = 2.71828 is the Euler number

$\mu$ is the mean in the given interval.

Item a:

10 hours, 2 calls per hour, hence the mean is given by:

$\mu = 2 \times 10 = 20$ .

The probability is P(X = 20), hence:

$P(X = x) = \frac{e^{-\mu}\mu^{x}}{(x)!}$

$P(X = 20) = \frac{e^{-20}20^{20}}{(20)!} = 0.0888$

Item b:

1 hour, hence the mean is given by:

$\mu = 2$

The probability is P(X = 0), hence:

$P(X = x) = \frac{e^{-\mu}\mu^{x}}{(x)!}$

$P(X = 0) = \frac{e^{-2}2^{0}}{(0)!} = 0.1354$

Item c:

The probability is:

$P(X \geq 1) = 1 - P(X = 0) = 1 - 0.1354 = 0.8646$

More can be learned about the Poisson distribution at brainly.com/question/13971530

#SPJ1

5 0

2 years ago

Students at MyTeam Middle School completed a survey about their preference for pizza Thursdays. They had three choices: veggie,

almond37 [142]

Answer:

2 7th graders prefer peperoni

4 8th graders prefer peperoni

7 7th graders prefer cheese

3 8th graders prefer cheese

Step-by-step explanation:

it does tell you the answer but you have to put it down, at least for me

8 0

3 years ago

Angad, Caroline and Sarah share some sweets in the ratio 4:2:1. Angad gets 20 sweets. How many sweets are there altogether?

sattari [20]

Answer:

35 sweets altogether

Step-by-step explanation:

20÷4=5

5*2=10

3 0

3 years ago

Enter your answer and show all the steps that you use to solve this problem in the space provided.

Nutka1998 [239]

The factorized expression is: 2(k+5)

Step-by-step explanation:

The distributive property is used to factorize the expressions with common factors. The common factor is taken out from the expression for the purpose of simplification

Given expression is:

$2k+10$

We can see that 2 is a common factor in both terms

So,

$= 2.k + 2.5\\= 2(k+5)$

The factorized expression is: 2(k+5)

Keywords: Factorization, distributive

Learn more about polynomials at:

#LearnwithBrainly

6 0

4 years ago

20194+9283 - 372 = ? <br><br>will give brainliest or whatever ‍

klemol [59]

20,194+9,283 - 372 = 29,105

6 0

4 years ago